This 2P energy meter has a higher definition interface, more accurate data display, more convenient operation, safer electricity use. Voltage, current, power, timing, electric energy, temperature, frequency and power factor 8in1 design, convenient for users to understand the use of electric energy, realize the visualization of electricity consumption. Standard guide rail installation, suitable for apartments, companies, shopping malls, hotels, family homes, and so on. Features: Premium Material: This energy meter is made of ABS and PC material, higher strength and toughness, higher temperature resistance, better overall performance. Multi-color Screen Interface Design: New intelligent design, higher definition interface, more accurate data display, more convenient operation, safer electricity use. Multi-functional Design: Voltage, current, power, timing, electric energy, temperature, frequency and power factor 8in1 design, convenient for users to understand the use of electric energy, realize the visualization of electricity consumption. And with power-off memory function. Guide Rail Slot Installation: Standard guide rail installation, no screws, snap-on mounting, convenient and easy to install. Wide Applications: Suitable for high and low power distribution cabinets, display cabinets and racks, factory assembly lines, corporate warehouses, rental apartments, companies, shopping malls, hotels, family homes, and so on. APP Function (Only KWS-302WF Support): Cellphone Remote APP Control: Download SmartLife APP or Tuya intelligent APP connection, realize WIFI network cloud remote intelligent control. Where there is signal, you can control the device whenever and wherever you want, unlimited distance. APP Timing Function: Countdown function, you can add multiple sets of time data in the mobilephone APP to set the power on. Device Sharing: Share management, multi-person control, support a one cellphone to control multiple switches, at the same time you can share multi-person control. Power Failure Protecting Function (KWS-302WF and KWS-302L Support): Support over-voltage, under-voltage, over-current, over-power, over-temperature, timer power failure protections setting, and screen hibernation setting. Specifications: Name: 8in1 Energy Meter Material: ABS+PC+VO Model: KWS-302WF, KWS-302L, KWS-302 (optional) Voltage measurement ranges: 170-270V Current measurement ranges: 0-63A Power measurement ranges: 0-17KW Timing measurement ranges: 0-999Hrs Electricity measurement ranges: 0-9999Kwh Temperature ranges: 20-150 Frequency measurement ranges: 50-60Hz Power factor: 0.00-1.00PF Power failure memory: KWS-302WF Yes, KWS-302L Yes, KWS-302 Yes Under-voltage protecting: KWS-302WF Yes, KWS-302L Yes, KWS-302 None Over-voltage protecting: KWS-302WF Yes, KWS-302L Yes, KWS-302 None WIFI: KWS-302WF Yes: KWS-302L None, KWS-302 None Item size: 66 *66 * 82mm / 2.60* 2.60* 3.23in Package size: 89* 73* 75mm / 3.50* 2.87* 2.95in Package weight: KWS-302: 182g / 6.42ounce KWS-302L: 213g / 7.51ounce KWS-302WF: 215g / 7.58ounce Packing List: 1 * 8in1 Energy Meter