Handheld circuit resistance tester is a micro resistance tester based on modern industrial design concept. The device is a hand-held instrument, small in size and easy to carry. It is powered by built-in lithium battery, especially suitable for field use. The "four-wire" current and voltage testing method can meet the measurement requirements of small resistors such as high-voltage switches, circuit breakers and relay metal contacts.

The equipment has the protection function of open circuit protection, overheat protection and so on. It adopts the 5.0-inch super industrial high brightness color LCD screen, which can be clearly displayed in the sunlight.