The only safe solution for socket testing, as it varifies that the earth is connected and indicates the quality of the earth connection. The T-Safe™ technology gives earth loop impedance checking without tripping 30mA rated RCDs 13A mains socket tester 3 red/green LEDs indicate 6 loop impedance ranges (±10%): 0 - 1.7Ω, 1.7 - 5Ω; 5 - 10Ω; 10 - 100Ω; 100 - 200Ω; 200 - 500Ω 3 red/green LEDs indicates wiring good plus wiring fault conditions: P-N reverse, P-E reverse, P fault, N open, E open Also indicates undervoltage (<195V) and overvoltage (>270V) conditions Overvoltage Category: CAT II, 300 V
Note
High sensitivity RCDs or excessive earth leakage currents may cause inadvertent tripping of the circuit. Always check prior to use where loss of supply may be hazardous or unacceptable. This unit is an indicator only and is not designed to provide readings for completing certificates
Caution
This product is not suitable for testing sockets that are supplied via an isolating transformer.