The first socket tester of its kind to measure earth loop impedance;Integrated T-SafeTM technology;Simple identification of earth loop measurement and socket faults;Bright, strong and easy to read LED light indicators;Earth loop impedance span: 0 - 1.7, 1.7 - 5, 5 to 10, 10 to 100, 100 to 200, 200 to 500

• Martindale EZ150 E-Ze Check Extra Earth Loop Impedance Indicator

Martindale EZ150 E-Ze Check Extra Earth Loop Impedance IndicatorMartindale