James Heal was involved in the development of the original Martindale with Dr Martindale and WIRA in the 1940s.

They also manufacture high quality PAT testers, multimeters, clamp meters, electrical testers, voltage testers, and environmental test equipment. phase socket tester for checking supply faults and incorrect wiring of CEE 4 pin, 16A socket outlets.They have a reputation for providing innovative and time-saving solutions for electricians and service professionals. Martindale Electric has always been a pioneer of test equipment, their firsts include; The socket tester, safety insulation tester, non-contact voltage indicator, fuse finder, the first non-trip, no battery, no push button loop tester, the first hand held insulation tester with polarisation index, the first advanced socket tester and the smallest and lightest hand-held PAT testers the HPAT500 plus and HPAT600 plus models. See the NEW Martindale E-Ze Check Xtra™ earth loop impedance socket tester below for verification of earth loop impedance. Founded in 1928 and also owns Edgcumbe Instruments Metrohm® products, as well as the John Drummond Engineers range of test lamps.

To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Where applicable we will include the following statement relating to the item/s on the products page under the heading *Important Calibration Information. Zone D - Outer Hebrides, Orkney Isles, Shetland Isles, Isle of Man, Scilly Isles, and Channel Islands (Charges are calculated at the checkout). If you would prefer a personalised full traceable calibration certificate applied to the equipment before dispatch, then please select this option from the drop-down menu above, an additional calibration charge will apply.You will be sent a full traceable calibration certificate produced in our laboratory and applied with your details as required. The PC104/16 is a 3-phase socket tester for checking supply faults and incorrect wiring of CEE 4 pin, 16A socket outlets. Nearly 90% of all calibrations we do are done in-house in one of our many fully equipped laboratories. 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. The Martindale Test Equipment range is designed for electricians and maintenance engineers and Martindale are, one of the most trusted brands for electrical safety testing.It offers a quick and easy, reliable way to check that 13 amp sockets are correctly wired, indicated by three bright, long life LED's.