Features: * Brand new and high quality * Easy installation and low power consumption. * High-definition display interface data, safer power consumption and more accurate data. * Remote control by mobile phone, unlimited distance. * Standard rail installation, no screws required, snap-on fastening, easy and quick installation. * With over-current power-off protection. Specifications: Part name: Voltage and current meter Material: ABS+PC+VO Size: As shown in the figure Color: White Input voltage: AC170-300 (V) Current range: 0.63A Power range: 0.17KW Timing range: 0-999 hours Power range: 0-9999KWH Temperature range: -20-150℃ Frequency range: 50-60HZ Power factor: 0.00-0.00PF Model (optional): KWS-302, KWS-302L , KWS-302WF Model: KWS-302WF (with WIFI, with power-off function) Power-off memory: yes Undervoltage protection: yes Overvoltage protection: yes WIFI: yes Model: KWS-302L (without WIFI, with power-off function) Power-off memory: yes Undervoltage protection: yes Overvoltage protection: yes WIFI: no Model: KWS-302 (without WIFI, with power-off function) Power fault memory: yes Undervoltage protection: no Overvoltage protection: no WIFI: no Please note: Only KWS-302WF wifi APP function. Package contents: 1 x voltage and current meter Note: 1.The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2.Please allow slight manual measurement deviation for the data. Lcd Digital Energy Meter Electricity Usage Monitor Ac170V~270V Power Voltmeter Made of standard material, quality assurance and practicality. Perfect function, bring you a wonderful experience. Every customer is entitled to a 30-day refund or replacement for damage/quality issues. If you have any questions, please feel free to contact us and we will solve it for you.