Typically, the AP-1 is used to control a door strike, barrier gate, automatic gate or automatic door operator. The AP-1 contains a high-gain UHF receiver which uses an external antenna to pick up signals from up to 250 feet away. Up to 169 Linear MegaCode Format transmitters and one Model MGT safety edge transmitter can easily be programmed into the AP-1’s memory. The AP-1 will retain its memory, even without power. Two dry contact relay outputs are standard. One relay is the ACCESS RELAY, which