{"id":184707,"date":"2025-04-25T09:27:00","date_gmt":"2025-04-25T02:27:00","guid":{"rendered":"https:\/\/techmaster.com.vn\/?post_type=product&#038;p=184707"},"modified":"2026-09-28T11:32:41","modified_gmt":"2026-09-28T04:32:41","slug":"handheld-digital-multimeter-keysight-u1242b","status":"publish","type":"product","link":"https:\/\/techmaster.com.vn\/en\/handheld-digital-multimeter-keysight-u1242b\/","title":{"rendered":"Handheld Digital Multimeter &#8211; Keysight U1242B"},"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 .eyebrow{font-family:'Be 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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<p><strong>SPECIFICATIONS HANDHELD DIGITAL MULTIMETER &#8211; KEYSIGHT U1242B<\/strong><\/p>\n<table>\n<tbody>\n<tr>\n<td colspan=\"2\">\n<h4><b>General technical data<\/b><\/h4>\n<\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Display resolution<\/span><\/td>\n<td><span style=\"font-weight: 400;\">10, 000<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Display<\/span><\/td>\n<td><span style=\"font-weight: 400;\">4 \u00bd-digit Liquid Crystal Display (LCD) with maximum reading of 10,000-count\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Automatic polarity indication<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">AC bandwidth<\/span><\/td>\n<td><span style=\"font-weight: 400;\">2 kHz<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">True RMS<\/span><\/td>\n<td><span style=\"font-weight: 400;\">AC<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Voltage DC<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Range: 100 mV to 1000 V<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Accuracy: 0.1% + 2 counts<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Voltage AC<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Range: 100 mV to 1000 V<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Accuracy: 1.0% + 3 counts<br \/>\n<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Power consumption<\/span><\/td>\n<td><span style=\"font-weight: 400;\">530 mVA maximum with backlight and flashlight.<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Battery life<\/span><\/td>\n<td><span style=\"font-weight: 400;\">400 hours\u00a0<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Connectivity<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Infrared (IR) port, connect with IR-USB cable<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Operating environment<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Full accuracy from \u201320 \u00b0C to 55 \u00b0C; and up to 80% R.H. for temperature up to 30 \u00b0C decreasing linearly to 50% R.H. at 55 \u00b0C<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Pollution degree II\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Altitude up to 3000 meters<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Measurement category<\/span><\/td>\n<td><span style=\"font-weight: 400;\">CAT III 1000 V \/ CAT IV 600 V<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Ingress protection rating<\/span><\/td>\n<td>No<\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Temperature coefficient<\/span><\/td>\n<td><span style=\"font-weight: 400;\">0.05 x (specified accuracy)\/\u00b0C (from \u201320 \u00b0C to 18 \u00b0C or 28 \u00b0C to 55 \u00b0C)<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Common Mode Rejection Ratio (CMRR)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">&gt; 120 dB at DC, 50\/60 Hz \u00b10.1% (1 k\u2126 unbalanced)<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Normal Mode Rejection Ratio (NMRR)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">&gt; 60 dB at 50\/60 Hz \u00b10.1%<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Dimensions<\/span><\/td>\n<td>184 mm (H) \u00d7 87 mm (W) \u00d7 57 mm (D)<\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Weight\u00a0<\/span><\/td>\n<td><span style=\"font-weight: 400;\">545 grams (with batteries)<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Warranty<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Three years for main unit. Three months for standard shipped accessories<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Calibration cycle<\/span><\/td>\n<td><span style=\"font-weight: 400;\">One year, or; Two years (with 1.5 times of one year specification)<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong style=\"font-size: 23.04px; color: #333333;\">Keysight U1242B: High-Performance Digital Multimeter<\/strong><\/p>\n<p>The Keysight U1242B handheld digital multimeter is a powerful tool designed for engineers and technicians who demand accuracy, durability, and ease of use. With its 10,000-count display and 0.1% basic DC voltage accuracy, this multimeter ensures precise measurements in demanding environments. Certified to drop-tested from 3 meters, the U1242B is ideal for industrial field applications. It supports AC\/DC voltage and current measurements, as well as resistance, capacitance, frequency, diode testing, and temperature monitoring using a K-type thermocouple. The True RMS feature guarantees accurate readings even for non-sinusoidal signals. With up to 300 hours of battery life, built-in LED flashlight, and IR-USB connectivity for data logging, the Keysight U1242B is a compact, reliable, and high-performance digital multimeter for professionals working in harsh or low-light environments.<\/p>\n<figure id=\"attachment_184654\" aria-describedby=\"caption-attachment-184654\" style=\"width: 1024px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/techmaster.com.vn\/wp-content\/uploads\/2025\/04\/Keysight_U1241B_Description_Image.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-184654 size-full\" src=\"https:\/\/techmaster.com.vn\/wp-content\/uploads\/2025\/04\/Keysight_U1241B_Description_Image.jpg\" alt=\"Handheld Digital Multimeter - Keysight U1242B\" width=\"1024\" height=\"768\" \/><\/a><figcaption id=\"caption-attachment-184654\" class=\"wp-caption-text\">Handheld Digital Multimeter &#8211; Keysight U1242B<\/figcaption><\/figure>\n<div class=\"tm-en-blocks\"><\/div>\n<div class=\"kx\">\n<div class=\"block\">\n<div class=\"eyebrow\">Applications<\/div>\n<h2 id=\"apps-u1242b\">What is the Keysight U1242B used for?<\/h2>\n<div class=\"cards c3\">\n<div class=\"card\">\n<div class=\"i\">\ud83d\udd22<\/div>\n<h3>Precision electrical measurement<\/h3>\n<\/div>\n<div class=\"card\">\n<div class=\"i\">\ud83c\udfed<\/div>\n<h3>Production test and QA<\/h3>\n<\/div>\n<div class=\"card\">\n<div class=\"i\">\ud83d\udd27<\/div>\n<h3>Maintenance and repair<\/h3>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"kx\">\n<div class=\"block faq\">\n<div class=\"eyebrow\">Frequently asked questions<\/div>\n<h2 id=\"faq-u1242b\">Keysight U1242B \u2014 frequently asked questions<\/h2>\n<details>\n<summary>Where can I buy a genuine Keysight U1242B in Vietnam?<\/summary>\n<div class=\"a\">Techmaster Electronics is an authorised Keysight Technologies distributor in Vietnam. We supply the Handheld Digital Multimeter &#8211; Keysight U1242B 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 U1242B cost?<\/summary>\n<div class=\"a\">The U1242B 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 U1242B covered by warranty and calibration?<\/summary>\n<div class=\"a\">Yes. The Handheld Digital Multimeter &#8211; Keysight U1242B 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 Handheld Digital Multimeter &#8211; Keysight U1242B<\/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\/handheld-digital-multimeter-keysight-u1242b\/#faq\", \"inLanguage\": \"en-US\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Where can I buy a genuine Keysight U1242B in Vietnam?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Techmaster Electronics is an authorised Keysight Technologies distributor in Vietnam. We supply the Handheld Digital Multimeter - Keysight U1242B 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 U1242B cost?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The U1242B 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 U1242B covered by warranty and calibration?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. The Handheld Digital Multimeter - Keysight U1242B 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":"<h3>More features<\/h3>\n<ul>\n<li>Dust and water resistant, and the durability to withstand a 10-ft drop<\/li>\n<li>Built-in LED flashlight and 400 hours of battery life<\/li>\n<li>Keysight Remote Link Solution enabled<\/li>\n<li>CAT III 1000 V and CAT IV 600 V Overvoltage Protection<\/li>\n<\/ul>\n","protected":false},"featured_media":184709,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[282,503],"product_tag":[],"class_list":{"0":"post-184707","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-multimeter","7":"product_cat-handheld-multimeter","8":"pa_brand-keysight-en","10":"first","11":"instock","12":"shipping-taxable","13":"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>Handheld Digital Multimeter - Keysight U1242B | Techmaster<\/title>\n<meta name=\"description\" content=\"Get accurate and reliable measurements with the Keysight U1242B handheld DMM. Features include 400-hour battery life, drop protection, and easy data logging via USB.\" \/>\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\/handheld-digital-multimeter-keysight-u1242b\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Handheld Digital Multimeter - Keysight U1242B\" \/>\n<meta property=\"og:description\" content=\"Get accurate and reliable measurements with the Keysight U1242B handheld DMM. Features include 400-hour battery life, drop protection, and easy data logging via USB.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/techmaster.com.vn\/en\/handheld-digital-multimeter-keysight-u1242b\/\" \/>\n<meta property=\"og:site_name\" content=\"Techmaster Electronics JSC\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/techmaster.electronics.jsc\" \/>\n<meta property=\"article:modified_time\" content=\"2026-09-28T04:32:41+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/techmaster.com.vn\/wp-content\/uploads\/2025\/04\/Your-paragraph-text-11.png\" \/>\n\t<meta property=\"og:image:width\" content=\"628\" \/>\n\t<meta property=\"og:image:height\" content=\"628\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:site\" content=\"@techmastervn\" \/>\n<meta name=\"twitter:label1\" content=\"Price\" \/>\n\t<meta name=\"twitter:data1\" content=\"Call for Price\" \/>\n\t<meta name=\"twitter:label2\" content=\"Availability\" \/>\n\t<meta name=\"twitter:data2\" content=\"In stock\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/techmaster.com.vn\/en\/handheld-digital-multimeter-keysight-u1242b\/\",\"url\":\"https:\/\/techmaster.com.vn\/en\/handheld-digital-multimeter-keysight-u1242b\/\",\"name\":\"Handheld Digital Multimeter - Keysight U1242B | Techmaster\",\"isPartOf\":{\"@id\":\"https:\/\/techmaster.com.vn\/en\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/techmaster.com.vn\/en\/handheld-digital-multimeter-keysight-u1242b\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/techmaster.com.vn\/en\/handheld-digital-multimeter-keysight-u1242b\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/techmaster.com.vn\/wp-content\/uploads\/2025\/04\/Your-paragraph-text-11.png\",\"datePublished\":\"2025-04-25T02:27:00+00:00\",\"dateModified\":\"2026-09-28T04:32:41+00:00\",\"description\":\"Get accurate and reliable measurements with the Keysight U1242B handheld DMM. 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