Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? The Takeaway: The Greenlee TK-30A may be the perfect electrical test kit. It weighs ...

Multi-function electrical testers The GT-540 and GT-220 multi-function electrical testers feature auto selection mode that allows electricians to measure AC/DC voltage in low impedance mode. It also ...