Earth resistance tester EST401

loopgroundportable

FEATURES •Measures earth resistance without need to disconnect from the electrical system or need for auxillary ground electrodes or reels •Ground Resistance is auto-ranging from 1 to 199Ω •Current Measurement is auto-ranging from 1mA to 40A •Ground voltage indication - warns of unsafe conditions •Clamping diameter of 1.4" (35 mm) with large jaw design •Stores up to 300 measurements •Includes a hard carrying case, calibration loop, four 1.5V AA batteries and a user manual