Description <br> Description: <br> The multi function digital display socket tester is used to test whether the circuit polarity of the power socket is connected correctly. <br> The phase detector can remind users to check the faults and hidden dangers of sockets in time to ensure the safety of household electricity. <br> Wide range of applications: Polarity testers are widely used in schools, laboratories, homes and other fields as a general measurement tool. <br> Easy to carry: The electrical fault checker is made of plastic, small in size and light in weight, making it easy to carry and store. <br> Ideal for measuring power parameters, working tools with higher precision. <br> Specification: <br> Color: black <br> Material: Plastic <br> Size(LxWxH): Approx. <br> 65x62x58mm/2.56x2.44x2.28inch <br> Package Includes: <br> 1 Piece Socket Tester <br> Note: <br> 1. Please allow slightly error due to manual measurement. <br> 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. <br> 3. Wish you a wonderful on line shopping! <br>