Features The Model ACT-31DH, 1-Button Factory Block Coded Trans Prox Transmitter with built in 26-bit Wiegand HID proximity Tag Features: • Buttons: Single Button. • Mounting: Key Ring • RF Freq: 318 Mhz MegaCode • Battery: 2 - 2016 • Color: Black with gray button. • Programming: Learn style, Block Coded, Factory Sequence • Works with AM-DPR Prox Reader and most HID readers The Model ACT-31DH is a single button transmitter that can be easily mounted on a key ring. With its 318 Mhz MegaCode RF frequency and 2 - 2016 batteries, this transmitter offers reliable and convenient access. It features a built-in 26-bit Wiegand HID proximity tag and can be programmed with a learn style, block coded, or factory sequence. Compatible with AM-DPR Prox Reader and most HID readers.