UNI-T UT501B Insulation Resistance Tester - 250V/500V/1000V

The UNI-T UT501B from the UT500 Series provides reliable insulation resistance testing for electrical maintenance. This professional tool features multiple voltage settings including 250V, 500V, and 1000V to accommodate various testing requirements. Designed for clarity and safety, it includes a 2000 count LCD display with a backlight for easy reading in different lighting conditions. This tester is equipped with an automatic discharge function and an auto shut off feature to manage power and safety. For enhanced user awareness, it includes a red warning light and a buzzer function to signal specific readings. Whether you are performing AC voltage measurements or continuous measurement mode tasks, the UT501B delivers consistent performance for your electrical testing needs.