- 【SEVEN WIRING CONDITIONS】 - Correct, missing earth / neutral / live, live earth reverse, live neutral reverse, neutral earth reverse, missing earth, seven wiring patterns help you rapidly detect whether the socket's wire connection is correct or not
- 【RCD & GFCI TESTING】 - Residual Current Operated Protective Device and Ground Fault Circuit Interrupter assist you to be aware of whether the power leak-proof protection works well or not, allowing you to protect your security against the risk of electric shock
- 【VOLTAGE MEASUREMENT】 - Perfect for detecting the stability of real-time voltage at home or factory outlets - accuracy (2.0%+2V), LCD display shows large white characters with backlight, making it easy to view even in dimly lit places
- 【EASY TO USE】 - Plug the mains tester in any doubtful sockets and the clear LED indication displays trustworthy results straight away, which saves you much time and improves efficiency in checking every socket
- 【SAFE & PRACTICAL】 - Compliant with CE CAT.II 600V RoHS safety standard, compact design is widely used in the school, home, laboratory, factory, office and other social fields; We offer you an 18-month and a 30-day money-back guarantee and will be pleased to help with a replacement or refund