{"product_id":"uni-t-ut139c-true-rms-digital-multimeter-6000-counts-ncv-temperature-tester","title":"UNI-T UT139C True RMS Digital Multimeter – 6000 Counts NCV Temperature Tester","description":"\u003ch3\u003eUNI-T UT139C True RMS Digital Multimeter\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eUNI-T UT139C\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a professional\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eTrue RMS digital multimeter\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efeaturing 6000-count resolution and smart auto-ranging for reliable electrical diagnostics across residential, commercial and light industrial applications. With 1000V AC\/DC voltage, 10A AC\/DC current, 60MΩ resistance, 60mF capacitance, 20MHz frequency, temperature measurement and NCV detection, this meter delivers comprehensive testing capability with CAT III 1000V safety rating. Its 3 readings\/second response and large backlit LCD make it perfect for electricians working in tight spaces and low-light conditions across Sri Lanka.\u003c\/p\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eUT139C\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eoffers True RMS accuracy for non-linear loads, smart auto\/manual ranging, MAX\/MIN\/REL modes, data hold, flashlight and sound\/light alarm functions. The ergonomic design with rubber holster and 318g weight ensures comfortable handling during extended service calls. Ideal for troubleshooting distribution boards, HVAC systems, solar inverters and appliance repairs from Colombo apartments to factory maintenance in Katunayake.\u003c\/p\u003e\n\u003ch3\u003eKey Features of UNI-T UT139C Multimeter\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e6000-Count True RMS Accuracy\u003c\/strong\u003e High-resolution display with True RMS for accurate measurements on inverters, LED drivers and switching power supplies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNCV Non-Contact Detection\u003c\/strong\u003e Sound and light alarms identify live wires safely before probe contact, perfect for initial circuit assessment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Measurement Suite\u003c\/strong\u003e 1000V AC\/DC voltage, 10A AC\/DC current, 60MΩ resistance, 60mF capacitance, 20MHz frequency and K-type temperature.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmart Auto\/Manual Ranging\u003c\/strong\u003e Automatic range selection with manual override for precise control in professional diagnostics.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBacklit Display + Flashlight\u003c\/strong\u003e Large illuminated LCD and built-in flashlight for clear readings inside DB boards and meter cabinets.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfessional CAT III 1000V Safety\u003c\/strong\u003e Double insulation and overload protection suitable for mains wiring and light industrial environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCommon Applications of UT139C in Sri Lanka\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrical Contractor Work\u003c\/strong\u003e Verify circuit loads, test insulation resistance and validate wiring installations in residential\/commercial projects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHVAC System Service\u003c\/strong\u003e Measure compressor currents, control voltages, capacitor values and refrigerant pipe temperatures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolar PV Troubleshooting\u003c\/strong\u003e Check inverter outputs, DC string voltages and AC grid connections in rooftop solar installations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAppliance Repair Shops\u003c\/strong\u003e Diagnose power supply faults, motor windings and control board electronics in household appliances.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications of UNI-T UT139C\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDC Voltage:\u003c\/strong\u003e 600mV~1000V ±(0.5%+2)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAC Voltage (True RMS):\u003c\/strong\u003e 6V~750V ±(1.0%+3)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAC\/DC Current:\u003c\/strong\u003e 600μA~10A ±(1.0%+2)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResistance:\u003c\/strong\u003e 600Ω~60MΩ ±(0.8%+2)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacitance:\u003c\/strong\u003e 6nF~60mF ±(3.0%+5)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature:\u003c\/strong\u003e −40°C~1000°C ±(1.0%+3)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisplay \u0026amp; Safety:\u003c\/strong\u003e 6000-count LCD | 318g | CAT III 1000V\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat's in the Box?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x UNI-T UT139C True RMS Digital Multimeter\u003c\/li\u003e\n\u003cli\u003e1 x Test Lead Set\u003c\/li\u003e\n\u003cli\u003e1 x K-type Temperature Probe\u003c\/li\u003e\n\u003cli\u003e2 x AAA Batteries (installed)\u003c\/li\u003e\n\u003cli\u003e1 x Protective Holster\u003c\/li\u003e\n\u003cli\u003e1 x User Manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"Polaris-Text--root Polaris-Text--headingLg Polaris-Text--semibold Polaris-Text--base\" tabindex=\"-1\"\u003e\u003cspan\u003eDownloads: \u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0997\/0224\/3637\/files\/ut139-series-data-sheet.pdf?v=1779088424\"\u003eUt139-series-data-sheet.pdf 1\u003c\/a\u003e\u003cbr\u003e\u003c\/span\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0997\/0224\/3637\/files\/uni-t-ut139-series-manual.pdf?v=1779088424\"\u003eUni-t-ut139-series-manual.pdf 2\u003c\/a\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Checkline","offers":[{"title":"Default Title","offer_id":52895280759093,"sku":null,"price":21650.0,"currency_code":"LKR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/0224\/3637\/files\/uni-t-ut139c-true-rms-multimeter-6000-counts-front-view-ready-dmm.webp?v=1779788942","url":"https:\/\/checkline.lk\/products\/uni-t-ut139c-true-rms-digital-multimeter-6000-counts-ncv-temperature-tester","provider":"Checkline","version":"1.0","type":"link"}