HT106 Digital Socket Tester AC48-250V RCD Test EU UK US Plug Polarity Detect Ground Zero Line Phase Check Circuit Breaker Finders Description: This socket tester is mainly used for power socket wiring detection and RCD test. It can detect the wiring status of the socket quickly and accurately. With LCD, it can also measure the voltage of the socket and display it. Features: 1. Plug and play, easy to operate. 2. The interface is clear and clear at a glance. 3. Small size, portable. 4. One-second detection, sensitive response, eliminate potential safety hazards. 5. RCD (Residual Current Device) function test. Specifications: Operating voltage:48-250V/45-65Hz Measure voltage (with LCD):48-250V/45-65Hz accuracy: (2.0%+2) Operating temperature:0C~40C Operating Humidity:20%-75% RH Storage temperature:-10C~50C Storage Humidity:20%-80% RH RCD test: >30mA (EU/UK Plug) RCD working voltage:220V+20V GFCI test: >5mA (US Plug) GFCI working voltage:110V20V Note: RCD and GFCI functions do not coexist Package includes: 1*Socket Tester 1*User Manual