earth loop impedance test device / relay / automatic

This is the first socket tester that gives a measurement of the earth loop impedance. This is the only safe solution for socket testing, as other testers can indicate as ?safe? a socket with a dangerously high earth resistance. Conventional indicators have the weakness that they only tell if the earth is connected, they don?t indicate how safe it is. Martindale?s new T-Safe? patented technology gives safe, earth loop impedance checking within carefully selected bands, without tripping the RCDs.

Non-trip earth loop test
Voltage test
Socket test for open termination and correct wires
T-Safe? patented technology
Identifies faults other checkers can?t