STRONG SIGNAL - Utilizes RF technology to transmit signals through walls, floors, and doors, allowing control of the receiver from any location within a reliable range. Maximum range reaches up to 328 feet in open areas without obstacles. LEARNING CODE FUNCTION - Offers enhanced security with a low repetition rate and relearn capability, enabling you to erase an old code and program a new one if a remote is lost or replaced. HIGH-POWER CONTROL - Features a 40A relay receiver, suitable for high-power electrical devices, ensuring stable and long-term operation. WIDE APPLICATION - Designed for use in 12V-72V systems, ideal for industrial and security control applications such as lights, motors, wireless alarms, remote controls, garage doors, and access control systems. NOTE: This is not a voltage-free contact switch; it activates based on supplied voltage. Please select the appropriate remote control switch according to your devices voltage requirements.