Socket tester is mainly used for power socket wiring detection and RCD test
It has a large and easy read fault chart. Includes 7 different patterns for you to read: Correct, Open Ground, Open Neutral, Open Live, Live/GRD Reverse, Live/NEU Reverse, Live/GRD Reverse Missing GRD
Lightweight and handy size, easy to carry and storage
As a general measurement tool and widely used in the school, laboratory, factory and other social field
With three indicators and LCD screen, it is easy for a newer to use it