Electrical Installation Testers Product Lines


UT500 Series
Insulation Resistance Tester


UT505 Series
Handheld Insulation
Resistance Tester


UT510 Series
Insulation Resistance Tester

UT500 series insulation testers are used to measure the insulation resistance of electrical  equipment and household appliances. UT500 series can measure insulation resistance, AC Voltage, low resistance, PI (Polarization Index) and DAR (Dielectric Absorption). These are ideal  tools for ensuring transformers, genera-tors, high voltage motors, power capacitors, power cables and other electrical equipment that can operate in a safe and accurate manner.   UT505 series handheld true RMS insulation resistance testers combine features of a digital multimeter and insulation tester. These testers can measure AC/DC voltage, frequency, resistance, capacitance, continuity, insulation resistance, PI, DAR, and automatically calculate resistance ratio to determine the insulation status. It can be used in insulation resistance testing of precision tools, cables, transformers, electrical appliances, and insulated materials.   UT510 series testers measure insulation resistance of large transformers, generators, high-voltage motors and more. They can also measure PI, DAR and other important specifications. Measured data can then be analyzed through PC software. UT513A produces test voltage up to 5kV.



Insulation Resistance Tester


UT520 Series
Digital Earth Tester


Multifunction Electrical Meter

The UT516B is a digital high voltage insulation resistance tester with 6 ranges: 500V, 1000V, 2500V, 5000V, 10000V and 12000V. Fine adjustment of voltage with 10% step at each range (except 12000V) is available. Test data can be saved in the tester memory and transferred to a PC via the dedicated USB cable, or be transferred to a PC in real time.   UT520 series can perform precise 3-wire and simple 2-wire earth resistance measurement for power and electrical systems, lightning protection equipment, and g round system of all electrical equipment. This series is
UNI-T’s introductory earth resistance tester with high economic value. Its lightweight design is convenient for fieldwork.
  UT526 is a multifunctional electrical installation tester. It can be used to test insulation resistance, RCD status, low resistance continuity, and voltage measurements. UT526 can be used to test power distribution system, lightning protection system and wiring systems to ensure safe operations.



Advance Earth Resistance Tester


UT580 Series
Digital RCD (ELCB) Tester


Digital RCD (ELCB) Tester

UT572 is for measuring earth resistance and soil resistivity. It can automatically check interface connection and detect  interference  voltage/frequency, with data hold and indication functions. It can perform 2/3/4-wire measurements for different on-site  applications, such as power equipment wiring and lightning protection equipment.   UT580 series digital RCD (ELCB) testers are necessary tools for engineering quality monitoring by measuring RCD (ELCB) trip time and current. Users can set X1/2, X1, X2, X5 the rated trip current to check RCD (ELCB) response rate under various conditions.   UT582+ is mainly used to detect whether the RCD in the circuit canbe triggered normally. It is only suitable for single-phase circuitswith the supply voltage range of 195V~253V. Its voltage measurementrange is 30V~600V, 45Hz ~65Hz.