but may work with others. It has a red LED light. It is a Button, 2 Way remote. It will need to be programmed with the included instructions.。 Designed to pair with a CA-4555 system。 Red LED indicator light。 Programming instructions included。 H5OTR7。 。 。 。, Code Alarm CAT1MTW Replacement Transmitter - H5OTR71: Car Electronics. Buy Code Alarm CAT1MTW Replacement Transmitter - H5OTR71: Accessories - ✓ FREE DELIVERY possible on eligible purchases. Designed to pair with a CA-4555 system 。 Red LED indicator light 。 Programming instructions included 。 H5OTR71 。 replacement remote start key FOB. It is designed to pair with a CA-4555 system.