Discover the LiftMaster 312HM Universal Coaxial Receiver, a versatile solution for enhancing your gate or garage door opener's functionality. Compatible with various LiftMaster remote controls and keypads, this receiver ensures seamless operation with its Security+ rolling code technology and DIP switch compatibility. It features an external 8" whip antenna for improved signal reception and a robust two-piece aluminum case with a detachable cover for easy installation. The 312HM is designed for flexibility, supporting both 12VDC and 18-35VAC/DC power options, and allows for either momentary or constant contact settings. It can store up to 15 high-security codes and 31 normal security codes, making it a secure choice for any setup. Upgrade your system with the FCC certified LiftMaster 312HM and experience reliable, enhanced access control. Don't wait, enhance your security today!