SONOFF POW3 smart 1-channel switch makes your high-powered electrical devices smart, supports remote control via Wi-Fi 24GHz; for a wide range of household appliances, suitable for DIN-rail With power consumption measuring and energy limitationSONOFF smart home system allows you to control your electrical appliances remotely with the EWeLink app or by voice with Amazon Alexa or Google Home It allows you to create different scenarios, group appliances by switching on/off multiple devices with a single touch, set timers and schedules, monitor the status of your devices in real time, and share their control Link your eWeLink with IFTTT application and extend your scene capabilities Thanks to configurable local LAN support Sonoff smart home system can work without a cloud server Features: Sonoff POWR3 smart metering switch with power on/off capability makes any appliance smart and allows you to set electricity price and monitor your consumption costsRemote control with a smart device using eWeLink mobile app (Android, IOS) or Home Assistant, IFTTT compatibleIt is a high power smart switch that can make your high-powered devices smart or act as a smart meter for a single room, connecting all the appliances in the room to the POWR3 and the power consumption of each room is counted individuallyBy switching off the power, you can ensure the safety of your appliances and save money You can also turn on/off your devices remotely or using smart scenaes in the app, eg if you exceed the set daily energy consumption, the switch can turn off the most energy-consuming appliances according to the settingsThe switch has overload protection: once the appliance is in abnormal working state, it will automatically be turned off for safetyThis smart switch stores your historical energy consumption for 100 days, which can be exported to your phone, and allows you to see the power, current and voltage of your appliances in real timeThe switch supports all the features of the Sonoff smart home system: timer, smart scenes, device grouping, synchronisation, sharing, sunset/sunrise routines, etcThe relay signal is transmitted over a 24GHz Wi-Fi network LAN mode control availableVoice control is compatible with Google Assistant, Amazon Alexa, SmartThings or AliceThe switch also supports Alexa smart energy management with Alexa Energy DashboardSuitable for DIN rail mountingThe switch can be combined with a wide range of other products to complement smart home scenesSpecifications: Voltage: AC 100~240VCurrent max: 25AFrequency: 50-60HzPower: max 5500WWi-Fi frequency: 24 GHzWi-Fi standard: IEEE80211b/g/nNumber of channels: 1Works with Amazon Alexa & Google Assistant, Alexa Energy Dashboard, SmartThings, AliceApp: eWeLink (Android, iOS)Dimensions: 162 x 122 x 455 mmHousing material: PC V0 (flame-retardant)Operating temperature: -10°C~40°CHumidity: 5%-95% (non-condensing)Weight: 500gColour: whiteCertification: CE/ FCC/ RoHSWarranty: 24 months