grouping them together for convenience. Offline Function: If the device is offline, the application will send a reminder to you after the device to go offline 30 minutes. Backlight Option: You can set the status of the backlight to ensure that turning the backlight on and off the light during rest will not affect the rest. (Type B and Type C support) Power Off Memory Function: Don't worry about power off, the device will remember the last state after power on again. (Type B and Type C support) Applicable Scenarios: It can be widely used in homes, factories, student dormitories, farmlands, municipal engineering, intelligent remotely control of water pumps, water heaters, floor heating equipments, etc. Note: Please install it by a professional electrician. This device only supports 2.4G wireless network, not 5G. Specifications: Name: Automatic Reclosing Protector Material: plastics Rated voltage: 230V Frequency: 50hz/60hz Input voltage: 80V-400V (Type A); 120-280V (Type B, C) Maximum current: 63A (Type A, B), 40A (Type C) Voltage measurement accuracy: 2% (Not Exceeding 2% Of The Total Ranges) Rated insulation voltage: 1000V Working temperature: -30 to 70 Item size: Type A: 85.5 * 31 * 60mm / 3.37 * 1.22 * 2.36in Type B: 100 * 36 * 67mm / 3.94 * 1.42 * 2.64in Type C: 100 * 18 * 67mm / 3.94 * 0.71 * 2.64in Item weight: Type A: 155g / 5.47ounce Type B: 229g / 8.08ounce Type C: 124g / 4.37ounce Package size: Type A: 87 * 40 * 40mm / 3.43 * 1.57 * 1.57in Type B: 103 * 78 * 40mm / 4.06 * 3.07 * 1.57in Type C: 103 * 78 * 40mm / 4.06 * 3.07 * 1.57in Package weight: Type A: 170g / 6.00ounce Type B: 245g / 8.64ounce Type C: 140g / 4.94ounce Packing List: 1 * Automatic Reclosing Protector