* Remote control distance is 50-150m M 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.
Nextion is a seamless Human Machine Interface (HMI) solution that provides a control and visualization interface between a human and a process, machine, application or appliance. Nextion is mainly applied to Internet of thing (IoT) or consumer electronics field.
Nextion NX4832T035-3.5″ HMI TFT LCD Touch Display Module is a seamless Human Machine Interface (HMI) solution that provides a control and visualization interface between a human and a process, machine, application or appliance. Nexion is mainly applied to the Internet of thing (IoT) or consumer electronics field. It is the best solution to replace the traditional LCD and LED Nixie tube.
New device for makers who want to build their own smart home system.
Sonoff is a universal switch for your smart home system to remotely turn on / off appliances. To work with the Sonoff SC, you will dig more possibilities. Learn more about Sonoff SC
【Roller Shades Motor Control】Let your electric curtains, roller blinds, etc become smart immediately.
【External Switch Two-Way Control】DUALR3 has 6 types of external switch detection mechanisms, making it suitable for most physical switch control.
【Power Metering】The 2-Gang detects voltage, current, and power values and counts the power consumption for you independently to allow for reasonable energy consumption control.Not available for DUALR3 Lite.
【With The Most Features】DUALR3 has three working modes that meet the needs of different application scenarios. Remote, timing, voice control, smart scenes, and other functions are all available.
【Safe And Reliable】TUV, CE, FCC, and RoHS certifications ensure a safer and more reliable product.
Click to view the difference between DUALR3 and DUALR3 Lite
SONOFF T2UK3C TX Smart Wifi White wall touch RF switch with Smart Home edge 3 Gang works with Alexa IFTTT,Google 
Nextion I/O Enhanced Expansion Board 