{"id":188974,"date":"2025-10-31T15:39:12","date_gmt":"2025-10-31T08:39:12","guid":{"rendered":"https:\/\/techmaster.com.vn\/?post_type=product&#038;p=188974"},"modified":"2026-09-28T12:34:20","modified_gmt":"2026-09-28T05:34:20","slug":"keysight-b2985b-electrometer-high-resistance-meter","status":"publish","type":"product","link":"https:\/\/techmaster.com.vn\/en\/keysight-b2985b-electrometer-high-resistance-meter\/","title":{"rendered":"Keysight B2985B Electrometer \/ High Resistance Meter"},"content":{"rendered":"<style>.kx{font-family:'Roboto',system-ui,sans-serif;color:#2a2f36;line-height:1.65;font-size:16px;max-width:1080px;margin:0 auto} .kx *{box-sizing:border-box} .kx h2,.kx h3{font-family:'Be Vietnam Pro',system-ui,sans-serif;color:#123E78;font-weight:800;line-height:1.2;margin:0} .kx h2{font-size:clamp(22px,2.6vw,30px);margin:0 0 14px}.kx h3{font-size:20px;margin:0 0 12px} .kx p{margin:0 0 14px}.kx p strong{color:#123E78}.kx a{color:#1B55A6;text-decoration:none} .kx 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10px 26px rgba(14,52,112,.1);transform:translateY(-3px)} .kx .card .i{font-size:24px;margin-bottom:10px}.kx .card h3{font-size:15px;margin-bottom:5px}.kx .card p{font-size:13.5px;color:#5b6b80;margin:0} @media(max-width:900px){.kx .cards,.kx .cards.c3{grid-template-columns:1fr 1fr}}@media(max-width:520px){.kx .cards,.kx .cards.c3{grid-template-columns:1fr}} .kx .faq details{background:#fff;border:1px solid #e4ebf4;border-radius:10px;padding:2px 20px;margin-bottom:12px}.kx .faq details[open]{box-shadow:0 2px 10px rgba(14,52,112,.06)} .kx .faq summary{list-style:none;cursor:pointer;font-family:'Be Vietnam Pro',sans-serif;font-weight:700;color:#123E78;font-size:16px;padding:16px 0;display:flex;justify-content:space-between;gap:14px}.kx .faq summary::-webkit-details-marker{display:none}.kx .faq summary::after{content:\"+\";font-size:22px;color:#1B55A6}.kx .faq details[open] summary::after{content:\"\u2013\"} .kx .faq .a{padding:0 0 18px;color:#5b6b80;font-size:15px}.kx .faq .a strong{color:#123E78} .kx .cta{background:linear-gradient(120deg,#0E3470,#1B55A6);color:#fff;border-radius:18px;padding:34px 30px;text-align:center}.kx .cta h3{color:#fff;font-size:22px;margin-bottom:8px}.kx .cta p{color:rgba(255,255,255,.85);margin-bottom:18px} .kx .cta a{display:inline-block;font-family:'Be Vietnam Pro',sans-serif;font-weight:700;border-radius:999px;padding:12px 26px;margin:4px}.kx .cta .b1{background:#C70032;color:#fff}.kx .cta .b2{background:transparent;color:#fff;border:2px solid rgba(255,255,255,.6)}.kx .ngrid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:4px 0 6px}.kx .ncard{position:relative;display:block;height:152px;border-radius:12px;overflow:hidden;background-size:cover;background-position:center;text-decoration:none;box-shadow:0 2px 10px rgba(14,52,112,.10);transition:transform .25s,box-shadow .25s}.kx .ncard:hover{transform:translateY(-4px);box-shadow:0 14px 30px rgba(14,52,112,.22)}.kx .ncard .nov{position:absolute;left:0;right:0;top:0;bottom:0;background:linear-gradient(180deg,rgba(9,26,62,0) 0%,rgba(9,26,62,.28) 38%,rgba(9,26,62,.72) 70%,rgba(9,26,62,.90) 100%)}.kx .ncard .nlb{position:absolute;left:14px;right:14px;bottom:11px;height:2.6em;display:block;overflow:hidden;color:#fff;font-family:'Be Vietnam Pro',system-ui,sans-serif;font-weight:700;font-size:15.5px;line-height:1.3;text-shadow:0 1px 6px rgba(0,0,0,.55)}.kx .ncard .nar{position:absolute;right:12px;top:10px;color:#fff;font-size:15px;opacity:.85}@media(max-width:900px){.kx .ngrid{grid-template-columns:1fr 1fr}}@media(max-width:560px){.kx .ngrid{grid-template-columns:1fr}.kx .ncard{height:136px}}.kx .cta .b1 .ic{display:inline-block;filter:brightness(0) invert(1)}<\/style>\n<h2 data-start=\"404\" data-end=\"509\">Keysight B2985B Electrometer \/ High Resistance Meter \u2013 Ultra-High Precision from 0.01 fA to 10 P\u03a9<\/h2>\n<figure id=\"attachment_188963\" aria-describedby=\"caption-attachment-188963\" style=\"width: 1164px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/techmaster.com.vn\/wp-content\/uploads\/2025\/10\/Keysight-B2985B.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-188963\" src=\"https:\/\/techmaster.com.vn\/wp-content\/uploads\/2025\/10\/Keysight-B2985B.png\" alt=\"Keysight B2985B\" width=\"1164\" height=\"654\" \/><\/a><figcaption id=\"caption-attachment-188963\" class=\"wp-caption-text\">Keysight B2985B<\/figcaption><\/figure>\n<p data-start=\"511\" data-end=\"881\">The Keysight B2985B Electrometer \/ High Resistance Meter is a world-class measurement instrument engineered for the most demanding applications requiring ultra-low current and ultra-high resistance testing. It enables researchers, engineers, and quality laboratories to perform stable and repeatable measurements at the femtoampere level with exceptional accuracy.<\/p>\n<p data-start=\"883\" data-end=\"1200\">The B2985B stands out with its ability to measure currents as low as 0.01 fA (0.01 \u00d7 10\u207b\u00b9\u2075 A) and resistances up to 10 P\u03a9 (10 \u00d7 10\u00b9\u2075 \u03a9), powered by a 1000 V built-in source. Its high sampling rate of 20,000 readings per second allows fast data acquisition for transient analysis and noise detection.<\/p>\n<p data-start=\"1202\" data-end=\"1575\">A 4.3-inch color LCD screen with a graphical user interface (GUI) makes it easy to visualize trends, histograms, and real-time measurements without requiring an external PC. The intuitive front-panel operation supports statistical functions, data logging, and visualization tools, helping users detect transient behavior, drift, and environmental effects instantly.<\/p>\n<p data-start=\"1577\" data-end=\"1793\">The optional Setup Integrity Checker software enables users to evaluate noise contributions from cables, fixtures, and grounding setups \u2014 ensuring measurement confidence in even the most sensitive applications.<\/p>\n<h3 data-start=\"1800\" data-end=\"1832\">Measurement Capabilities<\/h3>\n<ul data-start=\"1833\" data-end=\"2234\">\n<li data-start=\"1833\" data-end=\"1913\">\n<p data-start=\"1835\" data-end=\"1913\">0.01 fA minimum measurement resolution for precise low-current detection<\/p>\n<\/li>\n<li data-start=\"1914\" data-end=\"1986\">\n<p data-start=\"1916\" data-end=\"1986\">10 P\u03a9 maximum resistance measurement with built-in 1000 V source<\/p>\n<\/li>\n<li data-start=\"1987\" data-end=\"2069\">\n<p data-start=\"1989\" data-end=\"2069\">20,000 readings per second, ideal for fast data logging and noise analysis<\/p>\n<\/li>\n<li data-start=\"2070\" data-end=\"2157\">\n<p data-start=\"2072\" data-end=\"2157\">Accurate current, voltage, charge, and resistance measurement in one instrument<\/p>\n<\/li>\n<li data-start=\"2158\" data-end=\"2234\">\n<p data-start=\"2160\" data-end=\"2234\">Exceptional stability and repeatability for high-resistance measurements<\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"2241\" data-end=\"2261\">Key Features<\/h3>\n<ul data-start=\"2262\" data-end=\"2816\">\n<li data-start=\"2262\" data-end=\"2344\">\n<p data-start=\"2264\" data-end=\"2344\">Graphical measurement display: Real-time trend and histogram visualization<\/p>\n<\/li>\n<li data-start=\"2345\" data-end=\"2426\">\n<p data-start=\"2347\" data-end=\"2426\">Setup Integrity Checker software (optional) for noise source verification<\/p>\n<\/li>\n<li data-start=\"2427\" data-end=\"2498\">\n<p data-start=\"2429\" data-end=\"2498\">Auto navigation interface for quick configuration and operation<\/p>\n<\/li>\n<li data-start=\"2499\" data-end=\"2567\">\n<p data-start=\"2501\" data-end=\"2567\">Real-time noise monitoring to identify measurement anomalies<\/p>\n<\/li>\n<li data-start=\"2568\" data-end=\"2650\">\n<p data-start=\"2570\" data-end=\"2650\">Data logging and statistical analysis functions built into the front panel<\/p>\n<\/li>\n<li data-start=\"2651\" data-end=\"2735\">\n<p data-start=\"2653\" data-end=\"2735\">Compact and robust design, suitable for research labs and production testing<\/p>\n<\/li>\n<li data-start=\"2736\" data-end=\"2816\">\n<p data-start=\"2738\" data-end=\"2816\">USB, GPIB, and LAN connectivity for flexible data control and automation<\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"2823\" data-end=\"2843\">Applications<\/h3>\n<ul data-start=\"2844\" data-end=\"3168\">\n<li data-start=\"2844\" data-end=\"2900\">\n<p data-start=\"2846\" data-end=\"2900\">Semiconductor leakage current and insulation testing<\/p>\n<\/li>\n<li data-start=\"2901\" data-end=\"2958\">\n<p data-start=\"2903\" data-end=\"2958\">Characterization of advanced materials and components<\/p>\n<\/li>\n<li data-start=\"2959\" data-end=\"3012\">\n<p data-start=\"2961\" data-end=\"3012\">Evaluation of surface insulation resistance (SIR)<\/p>\n<\/li>\n<li data-start=\"3013\" data-end=\"3089\">\n<p data-start=\"3015\" data-end=\"3089\">Low-current measurement in physics, nanoelectronics, and quantum devices<\/p>\n<\/li>\n<li data-start=\"3090\" data-end=\"3168\">\n<p data-start=\"3092\" data-end=\"3168\">Long-term monitoring of high-resistance samples in controlled environments<\/p>\n<\/li>\n<\/ul>\n<p><strong>Note: <span class=\"to-be-discontinued__textChange\">This product is going to be discontinued and will be replaced by<\/span>\u00a0<a href=\"https:\/\/techmaster.com.vn\/en\/keysight-b2985c-electrometer-high-resistance-meter\/\">B2985C Electrometer \/ High Resistance Meter, 0.01 fA<\/a><\/strong><\/p>\n<div class=\"kx tm-legacy-replacement\">\n<div class=\"block\">\n<div class=\"eyebrow\">Tr\u1ea1ng th\u00e1i s\u1ea3n ph\u1ea9m<\/div>\n<h2 id=\"chuyen-doi-b2985b\">Chuy\u1ec3n \u0111\u1ed5i t\u1eeb B2985B sang c\u1ea5u h\u00ecnh hi\u1ec7n h\u00e0nh<\/h2>\n<p style=\"background:#FFF4E5;border:1px solid #F3C88F;border-radius:10px;padding:14px 16px;color:#5a4423\">Keysight \u0111\u00e3 <strong>ng\u1eebng s\u1ea3n xu\u1ea5t B2985B<\/strong>. Techmaster gi\u1eef trang n\u00e0y \u0111\u1ec3 tra c\u1ee9u th\u00f4ng s\u1ed1 v\u00e0 h\u1ed7 tr\u1ee3 thi\u1ebft b\u1ecb \u0111ang d\u00f9ng \u2014 <strong>hi\u1ec7u chu\u1ea9n ISO\/IEC 17025, s\u1eeda ch\u1eefa, ph\u1ee5 ki\u1ec7n<\/strong> v\u1eabn ph\u1ee5c v\u1ee5 b\u00ecnh th\u01b0\u1eddng.<\/p>\n<p>Theo trang s\u1ea3n ph\u1ea9m ch\u00ednh h\u00e3ng, c\u1ea5u h\u00ecnh thay th\u1ebf cho <strong>B2985B<\/strong> l\u00e0:<\/p>\n<div class=\"cards\" style=\"grid-template-columns:repeat(1,minmax(0,1fr))\">\n<div class=\"card\" style=\"border-left:4px solid #C70032\">\n<h3 style=\"margin-bottom:6px\"><a href=\"https:\/\/techmaster.com.vn\/keysight-b2985c-may-do-dien-tro\/\" style=\"color:#1B55A6\">Keysight B2985C M\u00e1y \u0111o \u0111i\u1ec7n tr\u1edf<\/a><\/h3>\n<p style=\"margin:0\">c\u00f3 s\u1eb5n t\u1ea1i Techmaster.<\/p>\n<\/div>\n<\/div>\n<p style=\"font-size:13px;color:#5b6b80;margin-top:14px\">Ngu\u1ed3n: trang s\u1ea3n ph\u1ea9m ch\u00ednh h\u00e3ng Keysight \u2014 <a href=\"https:\/\/www.keysight.com\/us\/en\/product\/B2985B\/b2985b.html\" target=\"_blank\" rel=\"noopener nofollow\" style=\"color:#1B55A6\">B2985B<\/a> (m\u1ee5c \u201cS\u1ea3n ph\u1ea9m thay th\u1ebf\u201d). Li\u00ean h\u1ec7 k\u1ef9 s\u01b0 Techmaster <strong>0908 173 345<\/strong> \u0111\u1ec3 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n l\u1ed9 tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i.<\/p>\n<\/div>\n<\/div>\n<div class=\"tm-en-blocks\"><\/div>\n<div class=\"kx\">\n<div class=\"block faq\">\n<div class=\"eyebrow\">Frequently asked questions<\/div>\n<h2 id=\"faq-b2985b\">Keysight B2985B \u2014 frequently asked questions<\/h2>\n<details>\n<summary>Where can I buy a genuine Keysight B2985B in Vietnam?<\/summary>\n<div class=\"a\">Techmaster Electronics is an authorised Keysight Technologies distributor in Vietnam. We supply the Keysight B2985B Electrometer \/ High Resistance Meter as 100% genuine equipment with CO\/CQ documents, engineering advice and full lifecycle support. Call +84 908 173 345 for a quote.<\/div>\n<\/details>\n<details>\n<summary>How much does the Keysight B2985B cost?<\/summary>\n<div class=\"a\">The B2985B is configured to order, so options and accessories change the price and Techmaster quotes each requirement individually. Send your requirement at https:\/\/techmaster.com.vn\/en\/contact\/ or call +84 908 173 345 for a same-day quote.<\/div>\n<\/details>\n<details>\n<summary>Is the Keysight B2985B covered by warranty and calibration?<\/summary>\n<div class=\"a\">Yes. The Keysight B2985B Electrometer \/ High Resistance Meter carries the Keysight manufacturer warranty, and Techmaster provides ISO\/IEC 17025 calibration, repair and scheduled maintenance in Vietnam.<\/div>\n<\/details>\n<\/div>\n<div class=\"cta\">\n<h3>Request a quote for the Keysight B2985B Electrometer \/ High Resistance Meter<\/h3>\n<p>Techmaster engineers advise on the configuration and quote the same day.<\/p>\n<p><a class=\"b1\" href=\"tel:0908173345\">\ud83d\udcde +84 908 173 345<\/a><a class=\"b2\" href=\"https:\/\/techmaster.com.vn\/en\/contact\/\">Request a quote<\/a><\/p>\n<\/div>\n<\/div>\n<p><script type=\"application\/ld+json\">{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"@id\": \"https:\/\/techmaster.com.vn\/en\/keysight-b2985b-electrometer-high-resistance-meter\/#faq\", \"inLanguage\": \"en-US\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Where can I buy a genuine Keysight B2985B in Vietnam?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Techmaster Electronics is an authorised Keysight Technologies distributor in Vietnam. We supply the Keysight B2985B Electrometer \/ High Resistance Meter as 100% genuine equipment with CO\/CQ documents, engineering advice and full lifecycle support. Call +84 908 173 345 for a quote.\"}}, {\"@type\": \"Question\", \"name\": \"How much does the Keysight B2985B cost?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The B2985B is configured to order, so options and accessories change the price and Techmaster quotes each requirement individually. Send your requirement at https:\/\/techmaster.com.vn\/en\/contact\/ or call +84 908 173 345 for a same-day quote.\"}}, {\"@type\": \"Question\", \"name\": \"Is the Keysight B2985B covered by warranty and calibration?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. The Keysight B2985B Electrometer \/ High Resistance Meter carries the Keysight manufacturer warranty, and Techmaster provides ISO\/IEC 17025 calibration, repair and scheduled maintenance in Vietnam.\"}}]}<\/script><\/p>\n","protected":false},"excerpt":{"rendered":"<p style=\"background:#FFF4E5;border:1px solid #F3C88F;border-radius:8px;padding:10px 12px;margin:0 0 12px;color:#5a4423;font-size:14px\"><strong>\u26a0 Model \u0111\u00e3 ng\u1eebng s\u1ea3n xu\u1ea5t.<\/strong> Xem c\u1ea5u h\u00ecnh thay th\u1ebf b\u00ean d\u01b0\u1edbi.<\/p>\n<h3 data-start=\"2241\" data-end=\"2261\">Key Features<\/h3>\n<ul data-start=\"2262\" data-end=\"2816\">\n<li data-start=\"2262\" data-end=\"2344\">\n<p data-start=\"2264\" data-end=\"2344\">Graphical measurement display: Real-time trend and histogram visualization<\/p>\n<\/li>\n<li data-start=\"2345\" data-end=\"2426\">\n<p data-start=\"2347\" data-end=\"2426\">Setup Integrity Checker software (optional) for noise source verification<\/p>\n<\/li>\n<li data-start=\"2427\" data-end=\"2498\">\n<p data-start=\"2429\" data-end=\"2498\">Auto navigation interface for quick configuration and operation<\/p>\n<\/li>\n<li data-start=\"2499\" data-end=\"2567\">\n<p data-start=\"2501\" data-end=\"2567\">Real-time noise monitoring to identify measurement anomalies<\/p>\n<\/li>\n<li data-start=\"2568\" data-end=\"2650\">\n<p data-start=\"2570\" data-end=\"2650\">Data logging and statistical analysis functions built into the front panel<\/p>\n<\/li>\n<li data-start=\"2651\" data-end=\"2735\">\n<p data-start=\"2653\" data-end=\"2735\">Compact and robust design, suitable for research labs and production testing<\/p>\n<\/li>\n<li data-start=\"2736\" data-end=\"2816\">\n<p data-start=\"2738\" data-end=\"2816\">USB, GPIB, and LAN connectivity for flexible data control and automation<\/p>\n<\/li>\n<\/ul>\n<p><a href=\"https:\/\/techmaster.com.vn\/wp-content\/uploads\/2025\/10\/B2980B-Series-Femto-Picoammeter-and-Electrometer-High-Resistance-Meter.pdf\" class=\"button alert is-alert is-medium\"><br \/>\n    <span>B2980B Series Femto\/Picoammeter and Electrometer\/High Resistance Meter<\/span><br \/>\n  <\/a><\/p>\n","protected":false},"featured_media":188963,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[984],"product_tag":[],"class_list":{"0":"post-188974","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-source-measure-units","8":"first","9":"instock","10":"shipping-taxable","11":"product-type-simple"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.8 (Yoast SEO v26.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Keysight B2985B Electrometer \/ High Resistan | Techmaster<\/title>\n<meta name=\"description\" content=\"The Keysight B2985B Electrometer \/ High Resistance Meter provides 0.01 fA resolution, 10 P\u03a9 measurement range, and 20,000 readings per second.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/techmaster.com.vn\/en\/keysight-b2985b-electrometer-high-resistance-meter\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Keysight B2985B Electrometer \/ High Resistance Meter\" \/>\n<meta property=\"og:description\" content=\"The Keysight B2985B Electrometer \/ High Resistance Meter provides 0.01 fA resolution, 10 P\u03a9 measurement range, and 20,000 readings per second.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/techmaster.com.vn\/en\/keysight-b2985b-electrometer-high-resistance-meter\/\" \/>\n<meta property=\"og:site_name\" content=\"Techmaster Electronics JSC\" 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