40a Tuya Single Phase Din Rail Wifi Smart Energy Meter Timer Power Consumption Monitor Kwh Wattmete f74 Remote control at anytime from anywhere by TUYA app on mobile ,no distance limit. Schedule /Timing, countdown, cycle timing Voice control by for Amazon dot and Google assistant Into Smart With Your DIY Idea; Remote control by mobile phone ,Tuya Smart Edition Timing Mode / Countdown Mode Notice: The Black model with power meter function 1.Remote control at anytime from anywhere 2.Timer ON/OFF 3.Scene setting,home scene(Turn on the light, turn on the water heater, turn on the TV, turn on the air conditioner,), going out scene(Turn off the lights, turn off the water heater, turn off the TV, turn off the air conditioner, etc.) 4.Sharing devices with family and friends 5.18 mm Din Rail instal Parameter: Working voltage:AC90-240V,50/60Hz Current: 40A Wireless type:Wi-Fi 2.4GHz Support system:for Android/iOS size:82x50x18mm Material:ABS colour:White + Black Package Contents: 1 x Circuit Breaker Only the above package content, other products are not included. Note: Light 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.