Features: 1.Good Performance:Designed for easy testing of 220V-230V sockets, simple and intuitive testing, clear display socket line status. 2.Power-off Switch:When the trip protection button is preed, the circuit does not jump off, indicating that the line is out of order, the instrument itself is automatically protected, will not be damaged, providing personal safety. 3.Easy to Use:Detect whether neutral, live and earth wire is connected correctly and to indicate which wire is miing with clear light patterns. 4.3 LED Light Patterns:With 3 easy to read indicators to indicate the state of the socket, easy to judge: Correct, Miing Earth, Live Earth Reverse, Live Neutral Reverse, Miing Neutral. 5.Usage:Polarity test of power supply, leakage detection, live detection of ground wire. Descriptions: 1. Mini portable design, easy to carry and simple to use. 2. RCD test, can detect the wiring status of the socket quickly and accurately. 3. Widely used in the school, laboratory, factory and other social fields. Specifications: Name:Socket Detector Model:ZPCT1806B Plug:EU Operating Voltage:220-250V Accuracy:(+2.0%+2) RCD Test:30MA Size:61x66mm/2.4x2.6in Color:Black Security Level:CE CAT II 600V ROHS Package Information: Package Size:81x81x86mm/3.19x3.19x3.39in Package Weight:55g/1.93oz General Package Package Included: 1 x Socket Detector Notes: 1.Due to the difference between different monitors,the picture may not reflect the actual color of the item. 2.Due to different personal measuring techniques,there might be 1-3cm error of the physical.Thank you!