{"id":11293,"date":"2026-04-15T08:08:10","date_gmt":"2026-04-15T08:08:10","guid":{"rendered":"https:\/\/www.hangzhiprecision.com\/?p=11293"},"modified":"2026-04-15T08:08:13","modified_gmt":"2026-04-15T08:08:13","slug":"hz903-current-voltage-tester","status":"publish","type":"post","link":"https:\/\/www.hangzhiprecision.com\/fi\/pnews\/hz903-current-voltage-tester\/","title":{"rendered":"HZ903 Luokka 0.01 Korkean Tarkkuuden Virta- ja J\u00e4nnitetesteri"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"11293\" class=\"elementor elementor-11293\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-11edce2 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"11edce2\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-f77beb8\" data-id=\"f77beb8\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-f978a6b elementor-widget elementor-widget-image\" data-id=\"f978a6b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"1000\" height=\"1333\" src=\"https:\/\/www.hangzhiprecision.com\/wp-content\/uploads\/2026\/04\/hz903.jpg\" class=\"attachment-full size-full wp-image-11304\" alt=\"HZ903 Class 0.01 High Precision Current &amp; Voltage Tester\" srcset=\"https:\/\/www.hangzhiprecision.com\/wp-content\/uploads\/2026\/04\/hz903.jpg 1000w, https:\/\/www.hangzhiprecision.com\/wp-content\/uploads\/2026\/04\/hz903-225x300.jpg 225w, https:\/\/www.hangzhiprecision.com\/wp-content\/uploads\/2026\/04\/hz903-768x1024.jpg 768w, https:\/\/www.hangzhiprecision.com\/wp-content\/uploads\/2026\/04\/hz903-9x12.jpg 9w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3b28d61 elementor-widget elementor-widget-text-editor\" data-id=\"3b28d61\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>Hangzhi HZ903 | Luokan 0.01 tarkkuusvirta- ja j\u00e4nnitetesteri \u2014 Erikoistunut l\u00e4hettimien kalibrointiin<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-ed7e62d elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"ed7e62d\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-b4c2647\" data-id=\"b4c2647\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7e165a4 elementor-widget__width-initial elementor-widget elementor-widget-heading\" data-id=\"7e165a4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Miksi perinteisill\u00e4 yleismittareilla on vaikeuksia kalibroida luokan 0.1 l\u00e4hettimi\u00e4?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-e0c6605\" data-id=\"e0c6605\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-b19215d elementor-widget elementor-widget-text-editor\" data-id=\"b19215d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Teollisuuden automaation ja tarkkuusmittauksen aloilla l\u00e4hettimien kalibrointi kohtaa usein seuraavat tekniset pullonkaulat:<\/p><h3>Tarkkuusrajoitukset<\/h3><p>Tavallisten yleismittareiden tarkkuus on riitt\u00e4m\u00e4t\u00f6n t\u00e4ytt\u00e4m\u00e4\u00e4n korkean tarkkuuden l\u00e4hettimien \u2014 erityisesti luokan 0,1 ja sit\u00e4 korkeampien \u2014 todennusvaatimukset.<\/p><h3>Heikkojen signaalien haasteet:<\/h3><p>Tavallisilta mittalaitteilta puuttuu usein tarvittava erotuskyky mitattaessa matalan tason signaaleja (kuten 4\u201320 mA tai 0\u201310 V), ja ne ovat eritt\u00e4in herkki\u00e4 ymp\u00e4rist\u00f6n s\u00e4hk\u00f6magneettisen kohinan aiheuttamille h\u00e4iri\u00f6ille.<\/p><h3>Inhimillinen virhe<\/h3><p>Usein toistuva manuaalinen mitta-alueen vaihto ja paperipohjainen tietojen tallennus tekev\u00e4t eritt\u00e4in todenn\u00e4k\u00f6iseksi, ett\u00e4 ihmisen lukuvirheit\u00e4 p\u00e4\u00e4see tapahtumaan, mik\u00e4 vaarantaa tietojen j\u00e4ljitett\u00e4vyyden.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-b9cbd1f elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"b9cbd1f\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-2de6cc7\" data-id=\"2de6cc7\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-9118e20 elementor-widget__width-initial elementor-widget elementor-widget-heading\" data-id=\"9118e20\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Hangzhi HZ903: Nelj\u00e4 keskeist\u00e4 etua, jotka on suunniteltu erityisesti l\u00e4hettimien kalibrointiin\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-82bd0e7\" data-id=\"82bd0e7\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-5f9b255 elementor-widget elementor-widget-text-editor\" data-id=\"5f9b255\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Hangzhi HZ903 tarkkuusvirta- ja j\u00e4nnitetesteri on testauslaite, joka yhdist\u00e4\u00e4 saumattomasti korkean tarkkuuden, automaation ja kannettavuuden, ratkaisten tehokkaasti l\u00e4hettimien kalibrointiin liittyv\u00e4t kriittiset ongelmakohdat.<\/p><h3>Metrologisen tason mittaustarkkuus (Luokka 0.01)<\/h3><p>Tasaj\u00e4nnite- ja tasavirtamittausten perusvirheraja on vain \u00b10,01 % lukemasta (RD). Sen poikkeuksellinen vakaus takaa, ett\u00e4 se voi toimia vertailustandardina t\u00e4ytt\u00e4en sek\u00e4 laboratorioiden ett\u00e4 kolmannen osapuolen metrologialaitosten tiukat vaatimukset.<\/p><h3>2. Korkearesoluutioinen pienten signaalien talteenotto<\/h3><ul><li><strong>Voltage Range:<\/strong> 0 to \u00b110V<\/li><li><strong>Nykyinen alue:<\/strong> 0 to 20mA<\/li><li><strong>Resolution:<\/strong> Up to 0.001%, enabling the sensitive capture of even the slightest linear variations in transmitter outputs.<\/li><\/ul><h3>3. Intelligent Automated Operation<\/h3><p>Features a built-in automatic range-switching circuit that selects the optimal measurement range without the need for manual intervention. When paired with the standard RS232 interface and accompanying PC software, the device enables automated data processing, storage, and report generation\u2014marking a complete departure from manual record-keeping.<\/p><h3>4. Industrial-Grade Portable Design<\/h3><p>Weighing in at \u22642kg with a compact form factor (83mm \u00d7 133mm \u00d7 423.5mm), the unit is ideally suited for both laboratory benchtop applications and on-site use within industrial and mining facilities for in-situ calibration.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-069ff13 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"069ff13\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-08cb94a\" data-id=\"08cb94a\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-07cc541 elementor-widget__width-initial elementor-widget elementor-widget-heading\" data-id=\"07cc541\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">HZ903 Key Technical Specifications<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-6ca9ecc\" data-id=\"6ca9ecc\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-0dea8f4 elementor-widget elementor-widget-text-editor\" data-id=\"0dea8f4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3>DC Voltage Input Measurement<\/h3><ul><li>Measurement Range: 0 to \u00b110 V<\/li><li>Basic Error Limit: 0.01% RG<\/li><li>Resolution: 0.001%<\/li><\/ul><h3>DC Current Input Measurement<\/h3><ul><li>Measurement Range: 0 to 20 mA<\/li><li>Basic Error Limit: 0.01% RG<\/li><li>Resolution: 0.001%<\/li><\/ul><h3>Other Parameters<\/h3><ul><li>Total Power Consumption: \u2264 300 W<\/li><li>Dimensions: 83 mm \u00d7 133 mm \u00d7 423.5 mm (L \u00d7 W \u00d7 H)<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-bd1f79c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"bd1f79c\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-dea2eb4\" data-id=\"dea2eb4\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4a19eae elementor-widget__width-initial elementor-widget elementor-widget-heading\" data-id=\"4a19eae\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Versatile Applications, Empowering Diverse Industries<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-0a0bbac\" data-id=\"0a0bbac\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-81aa8db elementor-widget elementor-widget-text-editor\" data-id=\"81aa8db\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3>Transmitter Calibration:<\/h3><p>Suitable for assessing the accuracy of various current- or voltage-output transmitters, including those for pressure, temperature, and flow.<\/p><h3>Metrology Verification:<\/h3><p>Serves as a high-grade reference instrument for verifying lower-tier DC instrumentation within metrology institutions.<\/p><h3>Automated Test Systems (ATS):<\/h3><p>Seamlessly integrates into automated production lines via serial communication protocols to enable batch testing.<\/p><h3>Scientific Research Laboratories:<\/h3><p>Provides highly reliable DC signal acquisition solutions for universities and research institutions.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-fb9c274 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"fb9c274\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-ed9ee5a\" data-id=\"ed9ee5a\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-9204650 elementor-widget__width-initial elementor-widget elementor-widget-heading\" data-id=\"9204650\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Tietoja Hangzhi<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-f9b4b70\" data-id=\"f9b4b70\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-9ec6bd4 elementor-widget elementor-widget-text-editor\" data-id=\"9ec6bd4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><a href=\"https:\/\/www.hangzhiprecision.com\/fi\/\"><strong>Shenzhen Hangzhi Precision Electronics Co., Ltd.<\/strong><\/a> on teknologisesti johtava yritys, joka on omistautunut huipputarkkojen virta-antureiden, j\u00e4nniteantureiden ja huipputarkkojen s\u00e4hk\u00f6isten mittauslaitteiden tutkimukseen ja kehitt\u00e4miseen, tuotantoon, myyntiin ja ratkaisujen r\u00e4\u00e4t\u00e4l\u00f6intiin. Pyrimme rakentamaan tunnetun tuotemerkin <a href=\"https:\/\/ieeexplore.ieee.org\/document\/8601521\">.<\/a> Tarkkuusvirta-antureita ja tarkkuuselektronisia mittauslaitteita tasavirta-alalla ja pyrkii kehittym\u00e4\u00e4n kansainv\u00e4lisesti johtavaksi tarkkuuselektroniikan johtajaksi tasavirtaj\u00e4rjestelmien alalla.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Hangzhi HZ903 | Class 0.01 Precision Current &amp; Voltage Tester \u2014 Specialized for Transmitter Calibration Why Do Traditional Multimeters Struggle to Calibrate Class 0.1 Transmitters? In the fields of industrial automation and precision metrology, transmitter calibration frequently encounters the following technical bottlenecks: Accuracy Limitations: The accuracy of standard multimeters is insufficient to meet the verification [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":11308,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[43],"tags":[],"class_list":["post-11293","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-pnews"],"aioseo_notices":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.2 (Yoast SEO v27.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>HZ903 Class 0.01 High Precision Current &amp; Voltage Tester<\/title>\n<meta name=\"description\" content=\"Hangzhi HZ903: Class 0.01 high precision Current &amp; Voltage tester for transmitter calibration. 0.001% resolution, auto-ranging, RS232, portable\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.hangzhiprecision.com\/fi\/pnews\/hz903-current-voltage-tester\/\" \/>\n<meta property=\"og:locale\" content=\"fi_FI\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"HZ903 Class 0.01 High Precision Current &amp; Voltage Tester\" \/>\n<meta property=\"og:description\" content=\"Hangzhi HZ903: Class 0.01 high precision Current &amp; Voltage tester for transmitter calibration. 0.001% resolution, auto-ranging, RS232, portable\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.hangzhiprecision.com\/fi\/pnews\/hz903-current-voltage-tester\/\" \/>\n<meta property=\"og:site_name\" content=\"Hangzhi Precision\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/ShenzhenHangzhi\/\" \/>\n<meta property=\"article:published_time\" content=\"2026-04-15T08:08:10+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-04-15T08:08:13+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.hangzhiprecision.com\/wp-content\/uploads\/2026\/04\/HZ903-s.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"600\" \/>\n\t<meta property=\"og:image:height\" content=\"450\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Hangzhi_News\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Kirjoittanut\" \/>\n\t<meta name=\"twitter:data1\" content=\"Hangzhi_News\" \/>\n\t<meta name=\"twitter:label2\" content=\"Arvioitu lukuaika\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minuuttia\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.hangzhiprecision.com\\\/pnews\\\/hz903-current-voltage-tester\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.hangzhiprecision.com\\\/pnews\\\/hz903-current-voltage-tester\\\/\"},\"author\":{\"name\":\"Hangzhi_News\",\"@id\":\"https:\\\/\\\/www.hangzhiprecision.com\\\/en\\\/#\\\/schema\\\/person\\\/e65df2a2a90a05e3c739bd38da3c3446\"},\"headline\":\"HZ903 Class 0.01 High Precision Current &amp; Voltage Tester\",\"datePublished\":\"2026-04-15T08:08:10+00:00\",\"dateModified\":\"2026-04-15T08:08:13+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.hangzhiprecision.com\\\/pnews\\\/hz903-current-voltage-tester\\\/\"},\"wordCount\":512,\"publisher\":{\"@id\":\"https:\\\/\\\/www.hangzhiprecision.com\\\/en\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.hangzhiprecision.com\\\/pnews\\\/hz903-current-voltage-tester\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.hangzhiprecision.com\\\/wp-content\\\/uploads\\\/2026\\\/04\\\/HZ903-s.jpg\",\"articleSection\":[\"Hangzhi Product New Releases\"],\"inLanguage\":\"fi\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.hangzhiprecision.com\\\/pnews\\\/hz903-current-voltage-tester\\\/\",\"url\":\"https:\\\/\\\/www.hangzhiprecision.com\\\/pnews\\\/hz903-current-voltage-tester\\\/\",\"name\":\"HZ903 Class 0.01 High Precision Current &amp; Voltage Tester\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.hangzhiprecision.com\\\/en\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.hangzhiprecision.com\\\/pnews\\\/hz903-current-voltage-tester\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.hangzhiprecision.com\\\/pnews\\\/hz903-current-voltage-tester\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.hangzhiprecision.com\\\/wp-content\\\/uploads\\\/2026\\\/04\\\/HZ903-s.jpg\",\"datePublished\":\"2026-04-15T08:08:10+00:00\",\"dateModified\":\"2026-04-15T08:08:13+00:00\",\"description\":\"Hangzhi HZ903: Class 0.01 high precision Current & Voltage tester for transmitter calibration. 0.001% resolution, auto-ranging, RS232, portable\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.hangzhiprecision.com\\\/pnews\\\/hz903-current-voltage-tester\\\/#breadcrumb\"},\"inLanguage\":\"fi\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.hangzhiprecision.com\\\/pnews\\\/hz903-current-voltage-tester\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fi\",\"@id\":\"https:\\\/\\\/www.hangzhiprecision.com\\\/pnews\\\/hz903-current-voltage-tester\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.hangzhiprecision.com\\\/wp-content\\\/uploads\\\/2026\\\/04\\\/HZ903-s.jpg\",\"contentUrl\":\"https:\\\/\\\/www.hangzhiprecision.com\\\/wp-content\\\/uploads\\\/2026\\\/04\\\/HZ903-s.jpg\",\"width\":600,\"height\":450,\"caption\":\"HZ903 Class 0.01 High Precision Current & Voltage Tester\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.hangzhiprecision.com\\\/pnews\\\/hz903-current-voltage-tester\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.hangzhiprecision.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"HZ903 Class 0.01 High Precision Current &amp; Voltage Tester\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.hangzhiprecision.com\\\/en\\\/#website\",\"url\":\"https:\\\/\\\/www.hangzhiprecision.com\\\/en\\\/\",\"name\":\"Hangzhi Precision\",\"description\":\"Hangzhi Precision\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.hangzhiprecision.com\\\/en\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.hangzhiprecision.com\\\/en\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fi\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.hangzhiprecision.com\\\/en\\\/#organization\",\"name\":\"Shenzhen Hangzhi Precision Electronics Co., Ltd.\",\"alternateName\":\"Hangzhi Precision\",\"url\":\"https:\\\/\\\/www.hangzhiprecision.com\\\/en\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fi\",\"@id\":\"https:\\\/\\\/www.hangzhiprecision.com\\\/en\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.hangzhiprecision.com\\\/wp-content\\\/uploads\\\/2023\\\/08\\\/logo-en-400x400-1.png\",\"contentUrl\":\"https:\\\/\\\/www.hangzhiprecision.com\\\/wp-content\\\/uploads\\\/2023\\\/08\\\/logo-en-400x400-1.png\",\"width\":400,\"height\":400,\"caption\":\"Shenzhen Hangzhi Precision Electronics Co., Ltd.\"},\"image\":{\"@id\":\"https:\\\/\\\/www.hangzhiprecision.com\\\/en\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/ShenzhenHangzhi\\\/\"]},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.hangzhiprecision.com\\\/en\\\/#\\\/schema\\\/person\\\/e65df2a2a90a05e3c739bd38da3c3446\",\"name\":\"Hangzhi_News\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fi\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/aed6969cd5e350cb9fac46f1f970d78ef8f32b124ab724ee53e19d2b78acdccf?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/aed6969cd5e350cb9fac46f1f970d78ef8f32b124ab724ee53e19d2b78acdccf?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/aed6969cd5e350cb9fac46f1f970d78ef8f32b124ab724ee53e19d2b78acdccf?s=96&d=mm&r=g\",\"caption\":\"Hangzhi_News\"},\"url\":\"https:\\\/\\\/www.hangzhiprecision.com\\\/fi\\\/author\\\/hangzhi_news\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"HZ903 Luokka 0.01 Korkean Tarkkuuden Virta- ja J\u00e4nnitetesteri","description":"Hangzhi HZ903: Class 0.01 high precision Current & Voltage tester for transmitter calibration. 0.001% resolution, auto-ranging, RS232, portable","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.hangzhiprecision.com\/fi\/pnews\/hz903-current-voltage-tester\/","og_locale":"fi_FI","og_type":"article","og_title":"HZ903 Class 0.01 High Precision Current &amp; Voltage Tester","og_description":"Hangzhi HZ903: Class 0.01 high precision Current & Voltage tester for transmitter calibration. 0.001% resolution, auto-ranging, RS232, portable","og_url":"https:\/\/www.hangzhiprecision.com\/fi\/pnews\/hz903-current-voltage-tester\/","og_site_name":"Hangzhi Precision","article_publisher":"https:\/\/www.facebook.com\/ShenzhenHangzhi\/","article_published_time":"2026-04-15T08:08:10+00:00","article_modified_time":"2026-04-15T08:08:13+00:00","og_image":[{"width":600,"height":450,"url":"https:\/\/www.hangzhiprecision.com\/wp-content\/uploads\/2026\/04\/HZ903-s.jpg","type":"image\/jpeg"}],"author":"Hangzhi_News","twitter_card":"summary_large_image","twitter_misc":{"Kirjoittanut":"Hangzhi_News","Arvioitu lukuaika":"3 minuuttia"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.hangzhiprecision.com\/pnews\/hz903-current-voltage-tester\/#article","isPartOf":{"@id":"https:\/\/www.hangzhiprecision.com\/pnews\/hz903-current-voltage-tester\/"},"author":{"name":"Hangzhi_News","@id":"https:\/\/www.hangzhiprecision.com\/en\/#\/schema\/person\/e65df2a2a90a05e3c739bd38da3c3446"},"headline":"HZ903 Class 0.01 High Precision Current &amp; Voltage Tester","datePublished":"2026-04-15T08:08:10+00:00","dateModified":"2026-04-15T08:08:13+00:00","mainEntityOfPage":{"@id":"https:\/\/www.hangzhiprecision.com\/pnews\/hz903-current-voltage-tester\/"},"wordCount":512,"publisher":{"@id":"https:\/\/www.hangzhiprecision.com\/en\/#organization"},"image":{"@id":"https:\/\/www.hangzhiprecision.com\/pnews\/hz903-current-voltage-tester\/#primaryimage"},"thumbnailUrl":"https:\/\/www.hangzhiprecision.com\/wp-content\/uploads\/2026\/04\/HZ903-s.jpg","articleSection":["Hangzhi Product New Releases"],"inLanguage":"fi"},{"@type":"WebPage","@id":"https:\/\/www.hangzhiprecision.com\/pnews\/hz903-current-voltage-tester\/","url":"https:\/\/www.hangzhiprecision.com\/pnews\/hz903-current-voltage-tester\/","name":"HZ903 Luokka 0.01 Korkean Tarkkuuden Virta- ja J\u00e4nnitetesteri","isPartOf":{"@id":"https:\/\/www.hangzhiprecision.com\/en\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.hangzhiprecision.com\/pnews\/hz903-current-voltage-tester\/#primaryimage"},"image":{"@id":"https:\/\/www.hangzhiprecision.com\/pnews\/hz903-current-voltage-tester\/#primaryimage"},"thumbnailUrl":"https:\/\/www.hangzhiprecision.com\/wp-content\/uploads\/2026\/04\/HZ903-s.jpg","datePublished":"2026-04-15T08:08:10+00:00","dateModified":"2026-04-15T08:08:13+00:00","description":"Hangzhi HZ903: Class 0.01 high precision Current & Voltage tester for transmitter calibration. 0.001% resolution, auto-ranging, RS232, portable","breadcrumb":{"@id":"https:\/\/www.hangzhiprecision.com\/pnews\/hz903-current-voltage-tester\/#breadcrumb"},"inLanguage":"fi","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.hangzhiprecision.com\/pnews\/hz903-current-voltage-tester\/"]}]},{"@type":"ImageObject","inLanguage":"fi","@id":"https:\/\/www.hangzhiprecision.com\/pnews\/hz903-current-voltage-tester\/#primaryimage","url":"https:\/\/www.hangzhiprecision.com\/wp-content\/uploads\/2026\/04\/HZ903-s.jpg","contentUrl":"https:\/\/www.hangzhiprecision.com\/wp-content\/uploads\/2026\/04\/HZ903-s.jpg","width":600,"height":450,"caption":"HZ903 Class 0.01 High Precision Current & Voltage Tester"},{"@type":"BreadcrumbList","@id":"https:\/\/www.hangzhiprecision.com\/pnews\/hz903-current-voltage-tester\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.hangzhiprecision.com\/"},{"@type":"ListItem","position":2,"name":"HZ903 Class 0.01 High Precision Current &amp; Voltage Tester"}]},{"@type":"WebSite","@id":"https:\/\/www.hangzhiprecision.com\/en\/#website","url":"https:\/\/www.hangzhiprecision.com\/en\/","name":"Hangzhi Precision","description":"Hangzhi Precision","publisher":{"@id":"https:\/\/www.hangzhiprecision.com\/en\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.hangzhiprecision.com\/en\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"fi"},{"@type":"Organization","@id":"https:\/\/www.hangzhiprecision.com\/en\/#organization","name":"Shenzhen Hangzhi Precision Electronics Co., Ltd.","alternateName":"Hangzhi Precision","url":"https:\/\/www.hangzhiprecision.com\/en\/","logo":{"@type":"ImageObject","inLanguage":"fi","@id":"https:\/\/www.hangzhiprecision.com\/en\/#\/schema\/logo\/image\/","url":"https:\/\/www.hangzhiprecision.com\/wp-content\/uploads\/2023\/08\/logo-en-400x400-1.png","contentUrl":"https:\/\/www.hangzhiprecision.com\/wp-content\/uploads\/2023\/08\/logo-en-400x400-1.png","width":400,"height":400,"caption":"Shenzhen Hangzhi Precision Electronics Co., Ltd."},"image":{"@id":"https:\/\/www.hangzhiprecision.com\/en\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/ShenzhenHangzhi\/"]},{"@type":"Person","@id":"https:\/\/www.hangzhiprecision.com\/en\/#\/schema\/person\/e65df2a2a90a05e3c739bd38da3c3446","name":"Hangzhi_News","image":{"@type":"ImageObject","inLanguage":"fi","@id":"https:\/\/secure.gravatar.com\/avatar\/aed6969cd5e350cb9fac46f1f970d78ef8f32b124ab724ee53e19d2b78acdccf?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/aed6969cd5e350cb9fac46f1f970d78ef8f32b124ab724ee53e19d2b78acdccf?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/aed6969cd5e350cb9fac46f1f970d78ef8f32b124ab724ee53e19d2b78acdccf?s=96&d=mm&r=g","caption":"Hangzhi_News"},"url":"https:\/\/www.hangzhiprecision.com\/fi\/author\/hangzhi_news\/"}]}},"_links":{"self":[{"href":"https:\/\/www.hangzhiprecision.com\/fi\/wp-json\/wp\/v2\/posts\/11293","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hangzhiprecision.com\/fi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.hangzhiprecision.com\/fi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.hangzhiprecision.com\/fi\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.hangzhiprecision.com\/fi\/wp-json\/wp\/v2\/comments?post=11293"}],"version-history":[{"count":1,"href":"https:\/\/www.hangzhiprecision.com\/fi\/wp-json\/wp\/v2\/posts\/11293\/revisions"}],"predecessor-version":[{"id":11344,"href":"https:\/\/www.hangzhiprecision.com\/fi\/wp-json\/wp\/v2\/posts\/11293\/revisions\/11344"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.hangzhiprecision.com\/fi\/wp-json\/wp\/v2\/media\/11308"}],"wp:attachment":[{"href":"https:\/\/www.hangzhiprecision.com\/fi\/wp-json\/wp\/v2\/media?parent=11293"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.hangzhiprecision.com\/fi\/wp-json\/wp\/v2\/categories?post=11293"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.hangzhiprecision.com\/fi\/wp-json\/wp\/v2\/tags?post=11293"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}