Martindale E-Ze check Xtra socket tester has been designed to check not only if the earth is connected, but also to tell you how good it is. Along with the facility to check the voltage and socket.

Specification :
Normal operating voltage : 230 V
Frequency : 50 Hz
Non-trip earth loop impedance ranges : 0 - 1.7 - 5 - 10 - 100 - 200 - 500 ohms
Earth loop threshold accuracy : ± (10 % + 0.3 ohms)
Voltage low indication : <195 V
Voltage high indication : >270 V
Open earth indication : >500 ohms
Power consumption : < 1.6 W
Overvoltage category : Cat 11/300 V
Dimensions : approx. 65 mm x 65 mm x 50 mm
Weight : 64 g