KKmoon KKM5 Digital Display Socket Detector Portable Circuit Polarity Voltage Tester Wall Plug Breaker Finder RCD Test This product is used to check whether the wires of power sockets are connected according to the requirements, and whether the power conservation system of the household is normal. It can promptly remind the user to make adjustments to the sockets of faults and safe hazards, guarantee the safety of household electricity. Features: 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. 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. Provides a clear indication that you can quickly understand and use it. As a general measurement tool and widely used in the school, laboratory, factory and other social field. Lightweight and handy size, easy to carry and storage. With three indicators and LCD screen, it is easy for a newer e it. Impact resistant ABS housing makes the product more practical and prevents it from drop damage. With one button controlling, the meter can quickly test socket if connects positive and negative anodes as request and whether household power conservation systems works well or not to ensure the household electrical safety. Specifications: Brand name: KKmoon Material: ABS Color: black Voltage: 48V-250V 45-65Hz RCD test: ＞30mA RCD working voltage: 220V±20V Voltage measurement: 48V～250V / 45～65Hz Accuracy: ±(2.0%+2) Working environment: 0℃ ～ 40℃, 20% ～75%RH Storage environment: -10℃ ～ 50℃, 20% ～80%RH Item size: 65 * 62 * 55mm / 2.6 * 2.4 * 2.2in Item weight: 60g / 2.1ounce Package size: 75 * 74 * 73mm / 3.0 * 2.9 * 2.9in Package weight: 100g / 3.5ounce Note: To ensure your safety, don't make the insert out of shape to affect the test result. Package list: 1 * Socket Tester 1 * User Manual