433MHz Universal Mini Wireless Remote Control Switch DC 5V 6V 9V 12V 24V 1CH Relay Receiver Module RF Transmitter for Led Light Lamp Door Electronic Lock Control DIY

This product can be installed in a small concealed space, with flexible control, the relay with a useful casing, which has better protection and prolongs the service life of the product. [Widely Applications]: This remote switch used in industrial control and security fields. [Learning code]the Learning code has high-level security for its low repetitive rate and re-learn mode, it can delete the old code and re-learn a new code,Support Remote Control up to 20 Pieces..syi