Tests standard, DC, selection and programmable RCDs. Ramp testing. Auto (remote) testing. 3ph safe. Enables testing on 110V centre tapped supplies. Performs 1/2I, 1xI & 50xI tests on RCDs rated at 10mA, 30mA, 100mA, 300mA, 500mA & 1000mA on general and selective (time delayed) RCDs. Weatherproof to IP54. USB interface for test results download.