2AB30F1D6-EB94-4B22-A350-FAB1796F07FEFA978532-209F-4691-AEF7-D027DCB71861A0403786-F930-428C-AC2A-4F709F7D847F1000V Compact Insulation Resistance TesterUT501A412807.15157.00000125UNI-T01Compact Insulation Resistance Tester 100V/250V/500V/1000V, ACV 750V, Auto Range, Low Battery Indication, Backlight, Alarm Light Display, Alarm Buzzer, High Voltage Indication, Over Load Indication, Auto Discharge, Test Voltage Vice Display, 10MO Internal Resistance Test, CAT II 1000V CAT III 600V, 2000 Count
RANGE: AUTO SPECIFICATION: CE/RoHS CAT RATING: CAT II 1000Vdownload-catalogue/uni-trend/unitrend-UT501A-501B-502A-insulation-resistance-tester.pdf1|2026-09-16:04:00Test Instruments\Electrical Power Testers\Electrical Installation TestersFA978532-209F-4691-AEF7-D027DCB71861UT501A.jpgUT501A.jpg(PATHUPLOAD)\__upload\ThreeD\Catalogue\images24410UT501A.jpgbrand-unit.png
2A846F125-0B5F-4D2D-B941-449D1E08F4CAFA978532-209F-4691-AEF7-D027DCB71861A0403786-F930-428C-AC2A-4F709F7D847F1000V Compact Insulation Resistance Tester Ground MeterUT501B423674.251.00000125UNI-TCompact Insulation Resistance Tester 100V/250V/500V/1000V, ACV 600V, Auto Range, Low Resistance 0.01?-200?, DAR, PI, Low Battery Indication, Backlight, Alarm Light Display, Alarm Buzzer, High Voltage Indication, Over Load Indication, Auto Discharge, Test Voltage Vice Display, 10MO Internal Resistance Test, CAT II 1000V CAT III 600V, 2000 Count
RANGE: AUTO SPECIFICATION: CE/RoHS CAT RATING: CAT III 600Vdownload-catalogue/uni-trend/unitrend-UT501A-501B-502A-insulation-resistance-tester.pdf1|2026-09-16:04:00Test Instruments\Electrical Power Testers\Electrical Installation TestersFA978532-209F-4691-AEF7-D027DCB71861UT501B.jpgUT501B.jpg(PATHUPLOAD)\__upload\ThreeD\Catalogue\images31950UT501B.jpgbrand-unit.png
23D4D2B16-F97A-4315-A097-4E859B9F8252FA978532-209F-4691-AEF7-D027DCB71861A0403786-F930-428C-AC2A-4F709F7D847FInsulation Resistance Tester insulation resistance, LCD (2000) with a backlitUT502A435296.90125UNI-TCompact Insulation Resistance Tester 500V/1000V/2500V, DCV & ACV, Auto Range, Low Battery Indication, Backlight, Alarm Light Display, Alarm Buzzer, High Voltage Indication, Over-Load Indication, Auto Discharge,Test Voltage Vice Display, PI/DAR, CAT II 1000V CAT III 600V, 2000 Count
RANGE: AUTO SPECIFICATION: CE/RoHS CAT RATING: CAT III 600Vdownload-catalogue/uni-trend/unitrend-UT501A-501B-502A-insulation-resistance-tester.pdf1|2026-09-16:04:00Test Instruments\Electrical Power Testers\Electrical Installation TestersFA978532-209F-4691-AEF7-D027DCB71861UT502A.jpgUT502A.jpg(PATHUPLOAD)\__upload\ThreeD\Catalogue\images46060UT502A.jpgbrand-unit.png
2E80B1134-4706-41CF-B010-F7D3161BEB0EFA978532-209F-4691-AEF7-D027DCB71861A0403786-F930-428C-AC2A-4F709F7D847FHandheld Digital Insulation Resistance Tester 6000-count True RMSUT505A448539.90125UNI-THandheld Insulation Resistance Tester, 50V/100V/250V/500V/1000V Test Voltage. 0.1M?-20G?. Short Circuit Current <2mA, Low Resistance, AC/DC Voltage 600V, Auto Range, True RMS, Step Voltage, DAR, PI, Timer, High Voltage Indication, Analogue Bar Graph, Auto Power Off, Continuity Buzzer, Data Hold, Data Storage 99, Comparison, Backlight, CAT IV 600V, 6000 Count
RANGE: AUTO TRMS: YES SPECIFICATION: CE/RoHS CAT RATING: CAT IV 600Vdownload-catalogue/uni-trend/unitrend-UT505-handheld-insulation-resistance-testers.pdf1|2026-09-16:04:00Test Instruments\Electrical Power Testers\Electrical Installation TestersFA978532-209F-4691-AEF7-D027DCB71861UT505A.jpgUT505A.jpg(PATHUPLOAD)\__upload\ThreeD\Catalogue\images74260UT505A.jpgbrand-unit.png
2C27C5FE5-5BE0-40E3-BAF1-3BA79951FB28FA978532-209F-4691-AEF7-D027DCB71861A0403786-F930-428C-AC2A-4F709F7D847FInsulation Resistance Tester with Auto Range True RMS Data that Hold Freq/cap Fuse and Self TestUT505B4512436.13.00000125UNI-THandheld Insulation Resistance Tester, 50V/100V/250V/500V/1000V Test Voltage. 0.1M?-200G?. Short Circuit Current <2mA, Low Resistance, AC/DC Voltage 600V, Leakage Current 10~2000µA, General Resistance 0.0kO~1000kO, Frequency 450Hz, Capacitance 100pF~10µF, Auto Range, True RMS, Step Voltage, DAR, PI, Timer, High Voltage Indication, Analogue Bar Graph, Auto Power Off, Continuity Buzzer, Data Hold, Data Storage 99, Comparison, Backlight, CAT IV 600V, 6000 Count
RANGE: AUTO TRMS: YES SPECIFICATION: CE/RoHS CAT RATING: CAT IV 600Vdownload-catalogue/uni-trend/unitrend-UT505-handheld-insulation-resistance-testers.pdf1|2026-09-16:04:00Test Instruments\Electrical Power Testers\Electrical Installation TestersFA978532-209F-4691-AEF7-D027DCB71861UT505B.jpgUT505B.jpg(PATHUPLOAD)\__upload\ThreeD\Catalogue\images108140UT505B.jpgbrand-unit.png
23EA514C8-ED59-4C77-98C3-9DEAD4293666FA978532-209F-4691-AEF7-D027DCB71861A0403786-F930-428C-AC2A-4F709F7D847FInsulation Resistance TesterUT511465754.60125UNI-TInsulation Resistance Tester 100V/250V/500V/1000V, DCV 1000V, ACV 750V, Low Resistance 999.9O, Auto Range, Auto Power Off, Low Battery Indication, Data Logging 18, Comparison, Polarisation Index (PI), Dielectric Absorption (DAR), Backlight, Analogue Bar Graph, Over Range Warning, High Voltage Indication, Timer +-30 Minutes, 10000 Count
RANGE: AUTO SPECIFICATION: CE/RoHS CAT RATING: CAT III 600Vdownload-catalogue/uni-trend/unitrend-UT510-insulation-resistance-testers.pdf1|2026-09-16:04:00Test Instruments\Electrical Power Testers\Electrical Installation TestersFA978532-209F-4691-AEF7-D027DCB71861UT511.jpgUT511.jpg(PATHUPLOAD)\__upload\ThreeD\Catalogue\images50040UT511.jpgbrand-unit.png
25E8D52F5-3D5B-44FF-A44C-E4F32A771BDAFA978532-209F-4691-AEF7-D027DCB71861A0403786-F930-428C-AC2A-4F709F7D847FInsulation Resistance Tester 500V/1000V/1500V/2500V 0%~20% High-voltage PI DAR Tester USB PC SoftwareUT512477568.158.00000125UNI-TInsulation Resistance Tester 500V/1000V/1500V/2500V, DCV 600V, ACV 600V, Auto Range, Auto Power Off, Low Battery Indication, Data Logging 18, Comparison, Polarisation Index (PI), Dielectric Absorption (DAR), USB, Backlight, Analogue Bar Graph, Over Range Warning, High Voltage Indication, Timer +-15 Minutes, 10000 Count
RANGE: AUTO SPECIFICATION: CE/RoHS CAT RATING: CAT III 600Vdownload-catalogue/uni-trend/unitrend-UT510-insulation-resistance-testers.pdf1|2026-09-16:04:00Test Instruments\Electrical Power Testers\Electrical Installation TestersFA978532-209F-4691-AEF7-D027DCB71861UT512.jpgUT512.jpg(PATHUPLOAD)\__upload\ThreeD\Catalogue\images65810UT512.jpgbrand-unit.png
26EAA9244-C0F7-49FA-A87B-4C93FAA21916FA978532-209F-4691-AEF7-D027DCB71861A0403786-F930-428C-AC2A-4F709F7D847FDigital Insulation Resistance Tester, 500V/1000V/2500V/5000V, Auto Range, Display Count: 9999UT513A4914088.6524.00000125UNI-TInsulation Resistance Tester 500V/1000V/2500V/5000V, DCV 600V, ACV 600V, Auto Range, Secondary Display, Auto Power Off, Low Battery Indication, Data Logging 18, Comparison, Polarisation Index (PI), Dielectric Absorption (DAR), USB, Backlight, Analogue Bar Graph, Over Range Warning, High Voltage Indication, Timer +-15 Minutes, Meets IEC 61557, 10000 Count
RANGE: AUTO SPECIFICATION: CE/RoHS CAT RATING: CAT III 600Vdownload-catalogue/uni-trend/unitrend-UT510-insulation-resistance-testers.pdf1|2026-09-16:04:00Test Instruments\Electrical Power Testers\Electrical Installation TestersFA978532-209F-4691-AEF7-D027DCB71861UT513A.jpgUT513A.jpg(PATHUPLOAD)\__upload\ThreeD\Catalogue\images122510UT513A.jpgbrand-unit.png
218E0E425-E9C6-4A3A-96BA-206C816BAAB4FA978532-209F-4691-AEF7-D027DCB71861A0403786-F930-428C-AC2A-4F709F7D847FInsulation Resistance Tester 12kVUT516B41060937.351.00000125UNI-T12kV Insulation Resistance Tester. IP67, 500V, 1000V, 2500V, 5000V, 10000V & 12000V Range, PC Analysis Software, Data Storage 999, Power Adaptor and Battery - Two Types of Power Mode. High Voltage Alarm Indication, Auto Discharge, PI and DARCAT RATING: CAT IV 600Vdownload-catalogue/uni-trend/unitrend-UT516B-insulation-resistance-tester.pdf1|2026-09-16:04:00FA978532-209F-4691-AEF7-D027DCB71861Test Instruments\Electrical Power Testers\Electrical Installation TestersUT516B.jpgUT516B.jpg(PATHUPLOAD)\__upload\ThreeD\Catalogue\images529890UT516B.jpgbrand-unit.png
UT278C/D Earth Clamp Meter, also called Loop Resistance Tester, is used for grounding resistance test. It has multiple functions such as clamping measurement, 3- or 4-wire measurement, voltage/current measurement, data storage/viewing, alarming, auto power off and more. With fast filtering technology employed, interference can be minimized.Designed with 2.4-inch color screen, UT278C/D is characterized by aesthetic appearance, easy to carry, wide range, high resolution, stable performance, strong anti-interference ability. It is mainly used to measure ground resistance of power distribution lines, gas stations, grounding grids, lightning rods, telecommunication, electric power, meteorology, oil fields and others.
Models: UT278C, UT278D
Features of UT278C/D Ground Pile Clamp Earth Resistance Tester
2.4-inch color LCD
Earth resistance measurement
Leakage current measurement
Load current measurement
Grounding voltage measurement
Soil resistivity measurement
Alarm function
USB data transfer
Built-in rechargeable lithium battery
1|2026-09-16:04:00Test Instruments\Electrical Power Testers\Electrical Installation TestersE2A3A544-99A9-4BE4-80E1-33AEB4F7CE25UT278C.jpgUT278C.jpg(PATHUPLOAD)\__upload\ThreeD\Catalogue\images215820UT278C.jpgbrand-unit.png
UT278C/D Earth Clamp Meter, also called Loop Resistance Tester, is used for grounding resistance test. It has multiple functions such as clamping measurement, 3- or 4-wire measurement, voltage/current measurement, data storage/viewing, alarming, auto power off and more. With fast filtering technology employed, interference can be minimized.Designed with 2.4-inch color screen, UT278C/D is characterized by aesthetic appearance, easy to carry, wide range, high resolution, stable performance, strong anti-interference ability. It is mainly used to measure ground resistance of power distribution lines, gas stations, grounding grids, lightning rods, telecommunication, electric power, meteorology, oil fields and others.
Models: UT278C, UT278D
Features of UT278C/D Ground Pile Clamp Earth Resistance Tester
2.4-inch color LCD
Earth resistance measurement
Leakage current measurement
Load current measurement
Grounding voltage measurement
Soil resistivity measurement
Alarm function
USB data transfer
Built-in rechargeable lithium battery
1|2026-09-16:04:00Test Instruments\Electrical Power Testers\Electrical Installation TestersE2A3A544-99A9-4BE4-80E1-33AEB4F7CE25UT278D.jpgUT278D.jpg(PATHUPLOAD)\__upload\ThreeD\Catalogue\images342940UT278D.jpgbrand-unit.png
2877B767C-6164-4AAA-9947-325E816D7478FA978532-209F-4691-AEF7-D027DCB71861A0403786-F930-428C-AC2A-4F709F7D847FInsulation Resistance Multimeter with Auto-range and True RMSUT5334179308.114.00000125UNI-TInsulation Resistance Multimeter, Auto Range, True RMS, 1000V AC/DC, 600mA, Resistance 40MO, Capacitance 100µF, Frequency 1MHz, Temperature, Insulation Resistance Test Voltage 100V/250V/500V/1000V, Diode, Auto Power Off, Continuity Buzzer, Low Battery Indication, Data Hold, MAX/MIN, Data Logging 99, Backlight, Full Icon Display, CAT IV 600V, 6000 Count
RANGE: AUTO TRMS: YES SPECIFICATION: CE/RoHS CAT RATING: CAT III 600V1|2026-09-16:04:00FA978532-209F-4691-AEF7-D027DCB71861Test Instruments\Electrical Power Testers\Electrical Installation TestersUT533.jpgUT533.jpg(PATHUPLOAD)\__upload\ThreeD\Catalogue\images80940UT533.jpgbrand-unit.png
2EBDBE570-657D-4C38-B504-87F43272AD4DFA978532-209F-4691-AEF7-D027DCB71861A0403786-F930-428C-AC2A-4F709F7D847FMultifunction Installation Tester (Compliance Tester)UT59342218112.51.00000125UNI-T01Multi-Function 9 in 1 Loop Tester, Insulation Resistance, Low Resistance Continuity, Line Impedance, Loop Impedance, Loop Impedance Without Tripping, RCD, Phase Sequence Test, RCD Measurement Ramp Slope, AC Voltage, PFC, Auto Power Off, Low Battery Indication, Data Logging, Backlight, Auto Half-Wave Test, RCD Countdown Measurement, RCD Half-Wave Test, Phase Switch (RCD), 10000 Count
RANGE: MANUAL SPECIFICATION: CE/RoHS CAT RATING: CAT III 600V
Includes • One of each Red Black and green lead • One of each crocodile clips Red Black and green • One test lead with 16A plug on one end • One red test lead that has a switch on the probe to power the meter on • One carry strap • One of each test probe Red Black and greendownload-catalogue/uni-trend/unitrend-UT593-multifunction-installation-tester-user-manual.pdf1|2026-09-16:04:00FA978532-209F-4691-AEF7-D027DCB71861Test Instruments\Electrical Power Testers\Electrical Installation TestersUT593.jpgUT593.jpg(PATHUPLOAD)\__upload\ThreeD\Catalogue\images157500UT593.jpgbrand-unit.png
2D3C84EA4-1468-4E01-ADFA-EDD64626BB9EFA978532-209F-4691-AEF7-D027DCB71861E2A3A544-99A9-4BE4-80E1-33AEB4F7CE25Insulation Resistance TestersUT501C4322110.250125UNI-TUT60 Series Digital Multimeters
UT501C Insulation Resistance Tester, with their new design, large scale integrated circuit and digital circuit, is utilized to measure insulation resistance, alternating voltage and other parameters. The tester has features of complete functions, high accuracy, stable performances, comfortable and reliable operation. The tester is used in maintenance, test and verification for various electrical equipment and is applicable to measure insulation resistance of transformer, motor, cable, switch, electric appliances, etc.
Features of UT501C Insulation Resistance Tester
Auto power off
Self-lock funciton
Overrange indication
Backlight function
1|2026-09-16:04:00Test Instruments\Electrical Power Testers\Electrical Installation TestersE2A3A544-99A9-4BE4-80E1-33AEB4F7CE25UT501C.jpgUT501C.jpg(PATHUPLOAD)\__upload\ThreeD\Catalogue\images18350UT501C.jpgbrand-unit.png
21BCBFB13-7ABC-4529-A4B7-885A4795312EFA978532-209F-4691-AEF7-D027DCB71861E2A3A544-99A9-4BE4-80E1-33AEB4F7CE25Intelligent High Voltage 10kV Insulation Resistance Tester Digital MegohmmeterUT515B43458901.850125UNI-T1|2026-09-16:04:00Test Instruments\Electrical Power Testers\Electrical Installation TestersE2A3A544-99A9-4BE4-80E1-33AEB4F7CE25UT515B.jpgUT515B.jpg(PATHUPLOAD)\__upload\ThreeD\Catalogue\images512190UT515B.jpgbrand-unit.png
2511BD60B-1C52-44E3-8550-1EBFB9803B93FA978532-209F-4691-AEF7-D027DCB71861A0403786-F930-428C-AC2A-4F709F7D847FFast Insulation Tester with fast MeasurementUT501E4358911.351.00000125UNI-TUT501E can verify the quality of the electrical equipment produced, confirm the change of the insulation of the electrical equipment over time, troubleshoot and determine the cause of the fault.
It features 2.5 times fast measurement, comparison test function and alarm function, and the “safety lock function” prevent false and effectively improve the work efficiency of electrical engineers. It is a convenient and practical tool.
Features of UT501E Fast Insulation tester Certifications: ROW ? Output voltage:100V, 125V, 250V, 500V, 1000V ? Insulation resistance: 0~4G ? 2.5 times faster measurement ? Comparison test function ? PI & DAR function ? Auto discharge ? Alarm function (Audible & Visible alarm) ? Data storage: 99 groups ? PC software analysis (via USB cable) ? Remote control test lead ? Lock function: to prevent false triggering ? Rechargeable lithium battery (12V, 2600mAh) ? IP54 ? Category rating: CAT III 600Vdownload-catalogue/uni-trend/unitrend-ut501e-fast-insulation-tester-datasheet.pdf1|2026-09-16:04:00Test Instruments\Electrical Power Testers\Electrical Installation TestersFA978532-209F-4691-AEF7-D027DCB71861UT501E-1.jpgUT501E-1.jpg(PATHUPLOAD)\__upload\ThreeD\Catalogue\images77490UT501E-1.jpgbrand-unit.png
20104E42D-7710-4A6B-93A3-61BA82A194A4FA978532-209F-4691-AEF7-D027DCB71861A0403786-F930-428C-AC2A-4F709F7D847FPV Insulation testerUT503PV43616018.352.00000125UNI-TUT503PV PV insulation resistance tester has the function of measuring photovoltaic live insulation resistance, ordinary insulation resistance function (non-live), AC and DC voltage automatic recognition measurement and so on
Features of UT503PV PV Insulation tester
Certifications (UT503PV series only): CE, cETLus
High output voltage: DC 1000V
UTD live test: DC 1000V
Insulation resistance (PV+IR): 4000MO
Voltage measurement: 1000V DC & 600V AC
Auto discharge
Stepping voltage
Time measurement
Compare function (IR)
High voltage alarm
Data communication: USB cable + Bluetooth app
Lithium battery
Portable & Convenient
download-catalogue/uni-trend/unitrend-UT503PV-insulation-tester.pdf1|2026-09-16:04:00Test Instruments\Electrical Power Testers\Electrical Installation TestersFA978532-209F-4691-AEF7-D027DCB71861UT503PV-1.jpgUT503PV-1.jpg(PATHUPLOAD)\__upload\ThreeD\Catalogue\images139290UT503PV-1.jpgbrand-unit.png
2213CA5DF-AF3C-4DE8-A2EA-EA33BABAF0B3FA978532-209F-4691-AEF7-D027DCB71861E2A3A544-99A9-4BE4-80E1-33AEB4F7CE25Clamp Earth Resistance TesterUT273+44015598.60125UNI-TThe UT273+ Clamp Earth Resistance Tester is used for earth resistance test. This meter uses an EBTN screen with a dual display function (the resistance & current displayed). It also has functions such as a real-time clock, data storage, data review, alarm, and automatic shutdown.
The tester is characterized by its aesthetic appearance, wide range, high resolution, easy operation, portability, stable performance, and strong ability to resist interference. It is a good tool for electrical engineers.
Features
Earth resistance test (0 ~ 600O)
Current test (0 ~ 20A
Large black screen (32mm)
Large jaw size
Strong anti-interference
Alarm function
Data storage (500 sets)
download-catalogue/uni-trend/unitrend-ut273plus-clamp-earth-resistance-tester.pdf1|2026-09-16:04:00Test Instruments\Electrical Power Testers\Electrical Installation TestersE2A3A544-99A9-4BE4-80E1-33AEB4F7CE25ut273plus.jpgut273plus.jpg(PATHUPLOAD)\__upload\ThreeD\Catalogue\images135640ut273plus.jpgbrand-unit.png
The battery internal resistance tester is a measuring instrument used to measure the internal resistance, voltage, and temperature of rechargeable batteries such as lead-acid batteries and lithium batteries to judge the health status of the battery.It can also be used as an instrument to measure the ESR parameters of electrolytic capacitors. UT677A uses the AC 4-terminal test method to measure the internal resistance of the battery, which can measure the correct measurement value without being affected by the contact resistance between the test lead, the terminal, and the battery electrode.The whole machine is high-grade and beautiful, with a wide range, high resolution, convenient operation, convenient carrying, accurate, reliable, stable performance, and strong anti-interference ability. It is an indispensable instrument for battery production, battery installation, equipment production, equipment maintenance, and other scenarios.
It can also be used as an instrument to measure the ESR parameters of electrolytic capacitors. UT677A uses the AC 4-terminal test method to measure the internal resistance of the battery, which can measure the correct measurement value without being affected by the contact resistance between the test lead, the terminal, and the battery electrode.
The whole machine is high-grade and beautiful, with a wide range, high resolution, convenient operation, convenient carrying, accurate, reliable, stable performance, and strong anti-interference ability. It is an indispensable instrument for battery production, battery installation, equipment production, equipment maintenance, and other scenarios.
Battery Internal Resistance Tester
Internal resistance test: 0.000mO~3.100 O
Voltage test: 0.000V~±71.00V
Temperature test: -10.0?~60.0?
PC software supported
Fast response: =200ms
Measurement result judgment function
5000 pieces of data storage & rechargeable lithium battery
Bluetooth APP (Android) supported
download-catalogue/uni-trend/uni-trend-ut677a-battery-internal-resistance-tester.pdf1|2026-09-16:04:00Test Instruments\Electrical Power Testers\Electrical Installation TestersE2A3A544-99A9-4BE4-80E1-33AEB4F7CE25UT677A.jpgUT677A.jpg(PATHUPLOAD)\__upload\ThreeD\Catalogue\images201490UT677A.jpgbrand-unit.png
