Radio remote control + receiver 315 , 433 MHz , relay switch

To manage email Equipment, garage doors, el. Locks, etc. The range is up to 100 m. All 4 channels work in button mode (pressed - on, off - off). Another version - with a different receiver board, works both as a button and as a switch. - 3500 Receiver power supply 5 v. Radio relay 1 channel - 3000 4 channels - 9000 Remote and receiver are programmable. See all my ads.