Uni-T UT501B is a versatile tester for quick and accurate inspection of electrical installations – offering test voltages of 250/500/1000 V, insulation resistance measurement up to 5 GΩ, PI and DAR functions for insulation diagnostics, and a clear backlit LCD display for safe work in the field and in the workshop.
The Uni-T UT501B insulation resistance tester from the UT500 series is a reliable instrument for measuring insulation resistance, AC voltage, and low resistance. It is designed for everyday use in inspections and maintenance – ideal for testing transformers, motors, cables, generators, and other electrical equipment and installations.
Thanks to automatic range selection, the option of continuous measurement, and safety features (warning buzzer, LED indication, high-voltage alarm), it is comfortable to use even in demanding conditions. After measurement, the instrument performs automatic discharge, and it also includes auto power-off and a low-battery indicator.
Key advantages:
- 3 test voltage levels: 250 V / 500 V / 1000 V
- Diagnostic PI and DAR functions for assessing insulation condition
- Backlit LCD with 2000-count resolution for good readability
- Accurate low-resistance measurement including a zeroing function
- Rugged, compact design suitable for electricians and service technicians
Package contents:
- Uni-T UT501B insulation resistance tester
- Test leads
- Alligator clips
- Batteries
- Carrying strap
