TT15 GPS dog tracking and training collar is the extra collar for the Garmin ALPHA GPS Dog system. This collar allows you to track and TRAIN up to 20 dogs (require extra TT15 Collars) in up to 7 km’s range. It is fully waterproof – IPX7 rating (up to 1 metres under water) and rechargeable with 4 hours fast charge battery .

Rescue Mode
The Rescue Mode increases the amount of time before a collar battery dies. This allows more time to find and recover the dog. This mode can be activated automatically or manually. When it is manually activated, the collar’s update rate will drop to every 2 minutes to ping the ALPHA handheld to extend the battery life. The Rescue Mode stays on until it is turned off. When the battery of the collar drops to 25%, it will be activated automatically.

25 hours with 5 second update rate

35 hours with 10 second update rate

40 hours with 30 second update rate

52 hours with 120 second update rate