Supported): Where there is a signal, you can control the device anywhere, anytime, without distance restrictions. Information about this product Premium Material: This energy grid is made of ABS and PC material, higher strength and toughness, higher temperature resistance and better overall performance. Multifunctional design: voltage, current, power, timer, electricity, temperature, frequency and power factor. 8-in-1 design, practical for users to understand the use of electricity and realize the visualization of energy consumption. With Power-Off-Memory function. Installation of the gap on the guide rail: standard installation of the guide, without screws, snap-on installation, convenient and easy installation. Specifications: Name: 8 in 1 energy meter Material: ABS PC VO Model: KWS-302WF Voltage measurement range: 170-270 V Current measurement range: 0-63 A. Power measurement range: 0-17 kW Time measurement range: 0-999 hours. Current measurement range: 0-9999 kWh Temperature range: 20-150℃ Frequency measurement range: 50 to 60 Hz. Power factor: 0,00-1,00 PF Power failure memory: yes Protection against too low voltage: Yes Surge protection: yes Wi-Fi: Yes 1 x 8 in 1 Energy Meter Item Size: 66 x 66 x 82 mm KWS-302WF: 215 g.