The Model 307010 1-Channel Key Ring Transmitter is a miniature style transmitter designed for automatic door and gate operator applications. Description The Model 307010 1-Channel Key Ring Transmitter is a miniature style transmitter designed for automatic door and gate operator applications. This transmitter is a single-channel device, pressing the pushbutton will send a signal to the receiver. The transmitter has a red test/operate indicator and is powered by a 12-volt battery. A molded-in hole in the case is for attaching the transmitter to a key ring. The transmitter is Multi-Code format with one 10-position coding switch providing 1,024 possible codes. The transmitter will only activate receivers set with the same code. The Model 307010 is compatible with 300 MHz Multi-Code receivers and Model 109950 and 302850 receivers. Features Compatible with 300 MHz Multi-Code receivers Easy access to battery and coding switches Power: 12-volt battery Codes: 1,024 (set by dip switches) RF frequency: 300 MHz Dimensions: 1.5″ W x 2″ H x 0.625″ D Resources Installation Manual Literature