Professional socket tester, easily detect socket wiring. This socket tester can be used for circuit construction or household line checking, which can guarantee personal safety and prolong the lifetime of electric appliances.

The UNI-T UT07A is a compact and user-friendly socket tester designed to quickly identify common wiring errors in standard electrical sockets.
1: By simply plugging it in, its LED indicators light up in specific patterns to indicate correct wiring, missing earth, live/earth reverse, live/neutral reverse, or missing neutral. 
2: It is widely used in residential and commercial settings for basic socket safety checks. 
3: Some versions, like the UT07B, may also include a leakage test feature for checking the proper functioning of circuit breakers.