433.92MHZ Wireless Dual-Channel Keypad & Receiver for Automatic Door / Garage / Swing / Sliding Gate Opener - Easy to Use

Compact wireless keypad and receiver kit operating at 433.92MHZ, built for automatic doors, garage doors and both swing and sliding gate openers. The system uses dual-channel transmitters that only activate after the correct combination is entered, and the transmitted code is changed at each transmission session to maximize security. Designed for mounting indoors or outdoors, the kit delivers an estimated range of 200M in open space and about 35M indoors. Battery life is designed to last roughly 2 years based on 10 transmissions per day, offering low-maintenance, easy operation.