Code Alarm CATXMT 4-Button Replacement Transmitter Remote 433.92MHz FCC H50T46 H5OT46 ***NEW VERSION CAT4P*** Code Alarm 4 button replacement metal transmitter remote FCC ID: H50T46 H5OT46 AM, superheterodyne (SAW), 433.92MHz, red LED Programmable to the following models: CA1150, CA1151, CA1153, CA1550, CA1551, CA1552, CA1553, CA5150, CA6150, CA6151, CA6153, CA6550, CA6551, CA6552, CA6553 You will need to use the system's valet switch (programming/override button) to perform the programming procedure