With this device tester, you can quickly and comfortably perform independent tests according to DIN VDE 0701-0702 (DGUV Regulation 3, BGV A3). This battery-operated device tester allows you to conduct essential tests such as protective conductor resistance, insulation resistance, and substitute leakage current even without mains voltage. Predefined test sequences make it easier for the tester to select the appropriate testing procedure, enabling a quick classification of test items into SK I or SK II. There is also a testing procedure for extension cords and cable reels, allowing these commonly encountered test items to be checked quickly and easily in practice.

Additionally, the PAT150R device tester can perform measurements of protective conductor current and touch current with mains voltage, ensuring safe measurements for test items with electronic switches. When the PAT150 device tester is powered by mains voltage, a measurement of the protective conductor current (differential current measurement method) or touch current (direct measurement method) is automatically conducted instead of the substitute leakage current measurement. The PAT150R device tester can be operated with both batteries and rechargeable batteries, with batteries and a charger included in the package.