Rated Voltage: 100-240V AC 50/60Hz Measurable Current Range: 0.2A-80A Protocal: ZigBee WiFi Frequency: 2.4GHZ (Not Support 5Ghz) Ambient Temperature Range: -10°C ~ 55°C Technical data: Communication method: Zigbee Camera Equipped: No State of Assembly: Ready-to-Go Compatibility: All Compatible App name: Tuya Smart, Smart Life Measure range: 0.2-80A Voltage: 100-240V Ambient Temperature Range: -10 - 50 degree Wireless Frequency: WiFi 2.4Ghz Protocal: ZigBee Material: Plastic colour: white Package Contents: 1 x smart meter 1 x Transformer CT Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.