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3PCS SONOFF RF Wifi Switch RF 433MHz Compatible with Alexa for Google Home 10A/2200W Wireless Switch with Timing Function for Android/IOS APP Control with 2PCS 3 Gang 86 Type ON/Off Switch Panel 433MHz Wireless RF Remote Control Transmitter Smart HomeOverview:
Sonoff RF switch is a Sonoff version with a 433MHz RF receiver module inside. This wireless RF switch can be used together with the RF remote controller, which enables you to control appliances indoor without phone APP. The wireless remote switch allows users remote turn on/off connected appliance of different types and brands via app EWeLink from anywhere in the world. Sonoff is a low-cost, and affordable device that can provide you with amazing smart home control experience. It sends data to cloud platform through the WiFi Router, which enables you to remotely control all appliances with APP eWeLink on your smart phone. Sonoff makes all your home appliances smart, as long as your phone has network you can remotely turn on or turn off your appliances from anywhere at any time. And by setting timing schedules for your appliances, you can maintain an carefree life.
RF Remote Switch Module 
Features:
*Supports control by 433MHz RF Remote. After successfully learning codes with 433MHz RF Remote, the Sonoff RF switch can be turned on/off by remote control indoors.
*Supports status tracking: device status is timely provided to eWeLink.
*Supports remotely turn on or off connected appliances, for example light, electric kettle, electric rice cooker, electrocar,etc.
*Supports max 8 enabled scheduled/countdown/loop timers for each device.
*Supports numerous WiFi smart switches on one smart phone.
*Compatible with Amazon Echo, for Google Home, for Google Nest.
*The cloud server of Sonoff RF is Amazon AWS global server.
RF 433MHz Sticky Switch 
Features:
*It can replace remote controller to control all SONOFF products with 433Mhz RF remote control function, such as T1 UK, T1 EU, Slampher, Sonoff RF, Sonoff 4CH Pro, except for Sonoff T1 US.
*Mechanical Life 100,000 times of operation. Excellent quality with long lifespan. Upgrade your home to an elegant smart home, control anywhere, anytime!
*You can stick or screw it to your original 86 box on the wall or near staircase, bedside or doorway. 
*With dual adhesive tape, can be installed anywhere you like. Easy installation and use.
RF Remote Switch Module Specification:
Voltage Input: 90-250V AC(50/60Hz)
Max. Current: 10A
Max. Power: 2200W
Size: 90*40*24mm (L*W*H)
Transmission mode: Wi-Fi communication
Wireless Standard: 802.11 b/g/n & 433MHz RF
Control mode: Mobile APP
Platform: for Android, iOS
Control distance: infinity
Controlled lines: 1
Humidity: 5%-90%RH, Non-condensing
Operating Temperature: -20ºC-70ºC
Enclosure Material: Fire-retardant ABS 
RF 433MHz Sticky Switch 
Specifications:
Channel: 1 CH
Encode: EV1527
Frequency: 433.92
Remote Control Distance:0-100m
Use Application: Staircase / Bedside / Doorway, etc.

M&W 3PCS SONOFF RF Wifi Switch RF 433MHz Compatible with Alexa for Google Home 10A/2200W Wireless Switch with Timing Function for Android/IOS APP Control with 2PCS 3 Gang 86 Type ON/Off Switch Panel 433MHz Wireless RF Remote Control Transmitter Smart Home