This UHPPOTE 433MHz 1-Channel RF Wireless Remote Control Switch is the perfect solution for controlling garage door openers, electric locks, LED lights and more. It is easy to set up and use, with a stable and reliable performance and high receive sensitivity. The good wireless RF signal can pass through walls, floors and doors, allowing you to control the receiver from any place within a reliable distance. It adopts non-directional wireless encoding technology, allowing independent control without mutual interference and can be flexibly configured in quantity and in operating modes. The relay module provides high signal sensitivity at lower cost and resist interference. It is suitable for industrial control and security fields, such as light, remote controller, wireless security alarm, wireless door alarm, wireless controller, etc.