The Dolphin 300/310 MHz Keyless Entry is a universal exterior keypad designed to add PIN-controlled access to gate operators and garage door openers that use fixed-code radio systems. Built for compatibility with popular legacy protocols, it works with 300 MHz Multi-Code as well as 310 MHz Linear Delta-3 and Stanley receivers, making it a practical replacement keypad or an easy add-on for residential or light commercial applications. By transmitting at 300 or 310 MHz using the selected fixed-code format, it lets users enter a secure PIN to trigger their opener without carrying a remote.
Setup is straightforward for systems that use DIP-switch coding. Select the correct protocol (Multi-Code 300 MHz, Linear Delta-3 310 MHz, or Stanley 310 MHz), then match the keypad’s internal code settings to the existing receiver or handheld transmitter. This unit is intended for fixed-code systems and is not designed for rolling-code platforms (such as LiftMaster Security+ or Genie Intellicode) unless an appropriate external receiver is added. For safety, mount the keypad away from moving door hardware and follow opener manufacturer guidelines during programming and testing. This Dolphin keypad is an efficient way to restore or upgrade access control on compatible Multi-Code, Delta-3, and Stanley installations where a dependable, universal replacement is needed.