Universal 12V 4CH Wireless Relay Remote Module Switch RF 433Mhz, with Smart Remote Control Key, 4 transmitters, 2 receivers, Used for DIY Modification of Garage Doors, Electric Doors, etc.
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1. RF technology has no directional requirements. The signal can pass through walls, floors and doors, and stably control the receiver at any position within a reliable distance. The maximum range is up to 164 feet, without obstacles.
2. 4CH for More Control:Adjustable working way, control equipment turn/reverse, on/off. Switch Self-lock, Jog, Inter-lock.
3. Learning code has high-level security for its low repetitive rate and re-learn mode, by which it can delete the old code and re-learn a new code when a remote control get lost, so you are always in control of it.
4. Applies to: remote control electric doors, windows, switches, door control LED lamps, motors, circuit security and other industrial lighting remote areas or remote on-off control.
5. We have made the transmitter and receiver work together and tested before shipment. After receiving it, you don’t need to do anything, just install it.