Buy the Martindale CMi210 Insulation Clamp Meter here:
http://www.tester.co.uk/martindale-cm…

Tutorial: Insulation Resistance Testing / Megger Testing / PAT testing Pt 1: https://www.youtube.com/watch?v=TdeU6…

Tutorial: Insulation Resistance Testing / Megger Testing / PAT testing Pt 2: https://www.youtube.com/watch?v=FV0Qa…

Uniquely designed for measurements of current and insulation, the CMi210 is a multifunctional clamp meter ideal for use in both domestic and industrial electrical installations.

The unique insulation testing function allows this meter to do what other clamps can’t: test insulation levels up to 6GΩ with five different selectable test voltages from 50V to 1000V. It also has built-in, large-size 57mm jaws, making it suitable for clamping directly around larger conductors in order to test AC current to 1500A and DC current to 2000A.

A built-in multimeter is also included and the CMI210 can measure DC voltage to 1000V, AC voltage to 750V, resistance to 60MΩ, capacitance to 6mF, frequency to 10MHz, duty cycle from 5 to 95%, temperature (using a type K thermocouple) and continuity/diode.