A single digital circuit tester designed to check electrical systems ranging from 3 to 49 V DC. It provides 360° visibility of polarity, using a red light for positive and a green light for negative readings. The tool includes a 12' (3.7 m) coil cord with an alligator clamp and an insulated probe to prevent shorting against nearby components.

A single digital circuit tester designed to check electrical systems ranging from 3 to 49 V DC. It provides 360° visibility of polarity, using a red light for positive and a green light for negative readings. The tool includes a 12' (3.7 m) coil cord with an alligator clamp and an insulated probe to prevent shorting against nearby components.