A low earth resistance is essential for safety disconnection devices to work properly and prevent electrocution when faults occur. See the Martindale E-Ze Check™ Xtra earth loop impedance socket tester, which checks earth quality and also detects voltage and earth faults. It also has a built-in self-test function that allows you to check the accuracy of the tester before use. In contrast basic socket testers only indicate the presence of an earth and will do so even when resistance values are dangerously high. You can change your choices at any time by visiting Cookie preferences, as described in the Cookie notice.

In addition to detecting 28 socket wiring fault conditions and checking mains voltage levels, the EZ165 verifies the earth wiring by carrying out a non-trip earth loop test and indicating its value in 6 discrete ranges from less than 1.The PC104/16 is a 3-phase socket tester for checking supply faults and incorrect wiring of CEE 4 pin, 16A socket outlets. The CP501 Check Plug is a fast and easy way to ensure that 13A sockets are wired correctly, indicated by all three LEDs illuminating.

We offer a free of charge calibration and certification with the purchase of any of the Martindale test equipment range. Get support for your instruments and test materials, including parts, failures, warranty or installation issues. The pattern of lit LEDs will demonstrate the type of fault detected allowing unsafe sockets to be quickly identified and diagnosed.Its clear display, self-test function, and easy-to-use design make it a great choice for anyone who needs to quickly and accurately test industrial sockets for safety and reliability. Two Year Martindale Warranty ⚡ Virtually indestructible, flame retardant ABS case with a sculpted shape for easy removal. phase socket tester for checking supply faults and incorrect wiring of CEE 4 pin, 16A socket outlets.