One Function wireless remote control kits are one button remote control units which can be used as a on/off wireless switch, or any other 12v application with 1 button and 1 function overall. 12V remote switches are very popular among many applications. Convert your application to a wireless remote switch with on and off functionality with our one function wireless remote controllers. Use as a wireless relay switch to complete a variety of applications which are powered by 12V or 24V applications including as a model rocket launcher, clay pigeon or shooting targets retrieval, air shut off, water shut off and more. Completely weather potted wireless remote control receivers are able to withstand any weather you throw at it including rain, snow and ice.