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01 Ohm resolution
Resistance
resistance
5V AAA alkaline batteries
The batteries stay in place
Martindale PD440S 440V AC Proving Unit 100mm 01 Ohm resolutionMartindale PD440 440V AC Proving Unit Safely and simply proves the operation of voltage indicators and test lamps Essential for implementing effective safe isolation procedures 440V industry leading proving unit for all low and high impedance testers Long battery life time with low battery indicator Optional in car & mains power supplies available Description The Martindale PD440 is a 440V AC proving device, designed to enable voltage indicators to be
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