The UNI-T UT501A Insulation Resistance Tester is a reliable tool designed for high-precision measurements of insulation resistance in electrical circuits. This model offers a range of test voltages—100V, 250V, 500V, and 1000V—allowing for flexible use in various applications. The device is equipped with features like automatic discharge, overload protection, and a large backlit LCD display for easy reading of results. It's ideal for professionals working with motors, transformers, cables, and other electrical installations.

Specifications & Features:

Insulation Resistance:
- 100V: 0MΩ~100MΩ
- 250V: 0MΩ~5GΩ
- 500V: 0MΩ~5GΩ
- 1000V: 0MΩ~5GΩ
- Load current: 50V (R=50kΩ) 1mA / 100V (R=100kΩ) 1mA / 250V (R=250kΩ) 1mA / 500V (R=500kΩ) 1mA / 1000V (R=1MΩ) 1mA
Test Voltages: 100V, 250V, 500V, 1000V
Display: 2000 count backlit LCD
Safety Features: Overload protection, automatic discharge
Applications: Testing of motors, transformers, cables
Power Supply: 1.5V batteries (6x AA)
weight: 500g
Product size: 150mm x 100mm x 71mm
Standard accessories: Batteries, test leads, alligator clips, gallus