This is a kind of quality protecting switch, that integrates multiple protecting functions. LCD display design, it can displays real time voltage and current on the digital screens simultaneously. When over-voltage, under-voltage, over-current occurs in the line, this product can immediately cut off the power supply to prevents electrical equipment from burning. The over-voltage, under-voltage and over-current protections values of this product can be set by yourself and can be adjusted according to the actual local situation. Features: Premium Material: The housing is made of flame resistant material, built-in intelligent Tuya chips, wear resistance, interference resistance, high strength and with fine durability. Physical button design, the threshold values can be customized as needed, sensitive operation and comfortable hand feeling. Digital LCD Display: LCD display design, it can displays 3 real time data on the digital screens simultaneously, more accurate, easier to read, you can see the data clearly at a glance. Automatic Reclosing Protecting Function: When it occurs overvoltage and over current, the protector will automatically cutoff the power supply to protects home apparatus, if the fault has been eliminated, it will automatically reclose and turn on the power. Multi-protections: With overvoltage, undervoltage, current limit, phase-break, zero lost, phase sequence, voltage unbalance, current unbalance protections, etc. Mobile phone APP Control: After downloading the mobile phone APP, you can set the threshold or switch remotely through your cellphone at any time when you are out of the house, enjoy the convenience of the mobile phone APP. Easy Wiring: Large wiring port design, makes the wiring process quicker and easier. Easy Installation: Compact size suitable for installation in the distribution box, or mounted on the wall. Din rail type snap installation, no screws required, buckle fixation. Wide Applications: Suitable for a variety of occasions, such as rental houses, shopping malls, schools, factories, etc. Recommended for use with high-power products which are prone to leakage behavior, such as electric heaters, ovens, water heaters, refrigerators, air conditioners, etc. Specifications: Name: Automatic Reclosing Protector Material: plastics Display: LCD display Voltage: 110V/220V Current: 100A Rated frequency: 50Hz Connection way: WiFi + tuya APP Temperature: -20℃ to 60℃ Item size: 89 * 75 * 75mm / 3.50 * 2.95 * 2.95in Item weight: 450g / 0.99lb Package size: 85 * 100 * 85mm / 3.35 * 3.94 * 3.35in Package weight: 470g / 1.04lb