A clamp meter is a device with a metal ring, which can be clamped around two coils. The first one (the primary circuit) is the wire in which the current flows. The second one (the secondary circuit) ...

The main advantage a good clamp meter gives you is being able to measure current without shutting off the power. You don’t have to strip back insulation either. This makes them very popular with ...

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? A digital multimeter is an indispensable tool for testing, diagnosing, and ...