* Remote control distance is 50-150m Ideal distance without any block and signal interfere, it would rise and fall about 10%-90% with the block and signal interference.
* 433MHz, strong power, bringing you new experience of remote control and much convenience in your daily life.
* It is only a common RF remote control. So it is only the professional can buy it alone or who buy our switch then need an additional transmitter.
* Suitable for remote control switches, anti-theft alarm, remote control door locks, remote control electric shutter doors and windows, water pump remote control, industrial control products, etc.
* Stable signal can pass through walls, floors, doors or windows.
【Stepless Dimmable】Set the dimming range you want and adjust the light steplessly at any time. Support to dim incandescent light bulbs and dimmable LED light.
【Open Device REST API】Connect and control the D1 with your existing home automation system like Home Assistant via LAN. Set up scenarios with different light intensities.
【Sunrise & Sunset Scenes】Keep track of the sun rise and set time of your location, so you can create a scene that activates at a fixed time, when the sun rises or when the sun sets.
【RF 433MHz Remote Control】Even easier dimming at hand, turn the light down casually with the RF 433MHz remote controller RM433 at the thrilling movie night, or on/off the light, enjoy an immersing moment.
【Adjust Party Ambience with Your Voice】Turn up/down the brightness level light with your voice command for a great atmosphere via Amazon Alexa & Google Assistant.
Note: SONOFF DW2 doesn’t come with batteries into the package.
Waterproof DS18B20 Temperature Sensor Temperature Transmitter 1m 
Sonoff DualR3 Retro-fit WiFi 2 Node Power Metering Smart Switch Module for Home Automation | Remote App Control Switch | No Hub Required | Compatible with Alexa and Google Home 
