Tronic Tester Big Electrical Tester

Our review

The Tronic Tester Big is a general-purpose electrical tester built around the kind of measurements electricians reach for daily: current, voltage, resistance and continuity. That combination makes it relevant to contractors and maintenance workers who inspect power transformers, electrical panels, live cables and circuit breakers, rather than to someone after a single-function voltage pen. Because no specifications are listed, check the measurement ranges, safety rating and probe type on the Sokonia listing before committing, and confirm it covers the voltages and categories you actually work with. Compare it against similar testers on input protection, display clarity and whether it includes a continuity buzzer.