Model TM-1 - Basic APRS® Compatible Tracking Module
Model TM-1+ - MultiMode APRS® Compatible Tracking & Telemetry Module
Mic Adapter - Mic Adapter Kit for TM-1 & TM-1+ (also works with other trackers).
GPS-16 - Garmin GPS-16 GPS Receiver wired and tested for the TM-1 / TM-1+. This receiver incorporates WAAS for better accuracy and now costs less than the GPS-35!
GPS-35 - Garmin GPS-35 GPS Receiver wired and tested for the TM-1/TM-1+.