The Martindale EZ150 is the first advanced 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 socket testers 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.
Earth loop measurement, and socket faults, are all indicated with bright, long-life LEDs. This unit should be used as an indicator only and not to provide readings for completion of certificates.
Mains Supply: 230V (50Hz)
Earth Loop Impedance Span: 0 - 1.7Ω, 1.7 - 5Ω, 5 to 10Ω, 10 to 100Ω, 100 to 200Ω, 200 to 500Ω
Earth Loop Impedance: +/- 10%, +0.3Ω
Voltage Low Indication: <195V
Voltage High Indication: >270V
Open Earth Indication: >500Ω
Power Consumption: <1.6W
Overvoltage: CAT II, 300V
Housing: Flame retardant ABS
Dimensions: 65 x 65 x 50mm
Weight: 64g approx