I have deployed over fifty CTT-1100 GPS-GSM cellular transmitters on Bald and Golden Eagles throughout Virginia. I have been very impressed with performance, data resolution, and durability of the CTT-1000.
Further, slots on these units are designed for easy attachment of harness straps. The CTT-1100, as well as all models of transmitters from Cellular Tracking Technologies, are produced by biologists, for biologists. If your research needs require high resolution tracking data then Cellular Tracking Technologies transmitters will exceed your expectations.