Megatronix MT66 5-Button Replacement Transmitter Remote 310MHz FCC H50T12 H5OT12 5-Button replacement transmitter remote (Replacement for MCRF3CD, SA-RF4, XT-23, XT-35) FCC ID: H50T12 H5OT12 (Replacement for H50604 H5O604, H50T06 H5OT06, H50T08 H5OT08, H50T10 H5OT10 (ONLY Autopage Car Pro systems), H50T14 H5OT14) AM, 310MHz, red LED Works for CPX-2300, CPX-2500, CPX-2600, CPX-3500, CPX-3600, MC45, MC45H, MC55, MC55DC, S215, S315, S415, S515, S525, S615 Compatible with select Autopage, Car Pro, Keymaster, Marksman, Megalarm, Viking