Check the listing for details. Linear MCS307010 MultiCode 300M Micro Slim 1-Channel Key Ring Remote Transmitter. Condition: New. Listed at 25.85 USD. Linear MCS307010 MultiCode 300M Micro Slim 1-Channel Key Ring Remote Transmitter Linear MCS307010 MultiCode 300M Micro Slim 1-Channel Key Ring Remote Transmitter 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.Compatible with 300 MHz Multi-Code receiversEasy access to battery and coding switchesPower: 12-volt batteryCodes: 1,024 (set by dip switches)RF frequency: 300 MHzDimensions: 1.5" W x 2" H x 0.625" D Payments & Returns Policy