Garmin T 20
 
 
Overview 
Specifications
Documents
Firmware
Press Release
 
 
 
Overview
 
Track Your Pack

No matter what kind of dogs you run or how you hunt, Alpha T 20 is the slim, rugged and universally sized collar designed to help you build a better dog - no matter the breed.
Track your dog up to 9 miles with a compatible handheld (sold seperately)   Optimize you rbattery life with dynamic tracking
Collar is universally sized to fit large and small breeds   Easily change the user replaceable flex band
Utilizes multicolor location beacon for low light conditions   Get automatic software updates when charging and connected to your network
 
Tracking

The top-mounted, high-sensitivity GPS and Galileo receiver keeps track of your dog’s location, and the Alpha T 20 collar transmits that location via VHF up to 9 miles away with updates as frequent as every 2.5 seconds when used with a compatible handheld (sold separately).


Universal Sizing

A rugged yet slim design is universally sized to fit large and small breeds.


Dynamic Tracking

Get extended battery life with dynamic tracking based on your dog’s movement.


Rugged Design

The collar features a user-replaceable flex band that can withstand the toughest outdoor environments.


LED Beacon Lights

This collar features bright, multicolor LED beacon lights to help you identify and track your dog in low-light conditions. They can be remotely activated and changed from a compatible handheld (sold separately).


Replaceable Battery Packs

When using dynamic tracking, get up to 68 hours with the standard battery pack and up to 136 with the extended battery pack (sold separately).


Automatic Updates

Receive automatic software updates when Alpha T 20 is charging and connected to your network with Wi-Fi technology.


Pair With Handhelds

The Alpha T 20 GPS dog collar easily pairs with Garmin dog tracking handhelds, such as the Alpha series and Pro 550 Plus (sold separately).
 
Specifications
 
Unit Dimensions 3.2" x 1.8” x 1.4” (8.1 x 4.5 x 3.5 cm)
Collar Length with standard 1” (2.54 cm) collar strap: minimum of 9.5” (24 cm) in circumference
with flipped 1” (2.54 cm) collar strap: minimum of 6.5” (16.5 cm) in circumference
Weight 5.9 oz (168.5 g) for transmitter and antenna (without collar)
8.4 oz (239.5 g) total weight (with collar)
Battery Type rechargeable lithium-ion pack; user-replaceable
Battery Life
Standard battery pack (included):
up to 68 hours using dynamic tracking (default)
up to 25 hours with location updates every 2.5 seconds
up to 84 hours with location updates every 2 minutes
  Extended battery pack (sold separately):
up to 136 hours using dynamic tracking (default)
up to 50 hours with location updates every 2.5 seconds
up to 168 hours with location updates every 2 minutes
Waterproof 1 ATM (10 meters)
High Sensitivity Receiver Yes
GNSS GPS + Galileo
Range 9 miles
LED Beacon Lights Yes (multicolor)
Rescue Mode Yes
Sleep Mode Yes (Alpha products only)
Frequency Mode MURS
 
Documents
 
Garmin T 20 Owners Manual
Garmin Dog Collar Compatibility
Garmin Dog Collar Video Archive
 
Firmware History
 
Changes made to version 2.17:
    Beacon light blink mode fix.
    Improved stability.
Changes made to version 2.10:
    Show blue LED while connected to Alpha LTE.
    Download GPS ephemeris while charging.
Changes made to version 2.08:
    Fixed a false movement detection during tone and vibration.