App Real Time Monitor Power Consumption , Electricity Statistic by Hour, by Day, By Month and By Year.Real Time Monitor Energy Consumption via App. Overload Protection - You Can Set Threshold Parameter on Meter. Only 2 parameter thresholds can be set Easy Installation High Quality - We Tested Every Product before Delivery to Make the Quality Is Reliable Input:AC85-270V45-65Hz Output:AC85-270V45-65Hz Max. Current:80A Wireless Protocol:Zigbee 3.0 Wireless Frequency:2.4GHZ Working Temperature: -25-+55 Colour:White Material:plastic Size:100x36x65mm Package Contents: 1 * Tuya WiFi Bidirectional Energy Meter 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.