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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 14.5 kilometers when used with a compatible handheld (sold separately).
-Optimise your battery life with dynamic tracking.
-Collar is universally sized to fit large and small breeds.
-Easily change the user-replaceable flex band.
-Uses multicolour location beacon for low-light conditions.
-Get automatic software updates when charging and connected to your network with
Wi-Fi® technology.
 
WHAT YOU'LL LOVE
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 14.5 kilometers 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, multicolour 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 (sold separately).
 
Specifications
 
Tracking range
Up to 14.5 km
Dimension
8.1 x 4.5 x 3.5 cm (3.2″ x 1.8″ x 1.4″)
Weight
168.5 g (5.9 oz) for transmitter and antenna (without collar)
239.5 g (8.4 oz) total weight (with collar)
Water rating
1 ATM (10 metres)
Battery type
Rechargeable lithium-ion pack; user-replaceable
Battery life
Standard battery pack (included)
- Up to 68 hours using dynamic update rate (default mode)
- Up to 25 hours with 2.5 second update rate
- Up to 84 hours with 2 minute update rate

Extended battery pack (sold separately)
- Up to 136 hours using dynamic update rate (default mode)
- Up to 50 hours with 2.5 second update rate
- Up to 168 hours with 2 minute update rate
 
Interface
USB-C
Sensors
GPS
Yes
Galileo
Yes
Device frequency
VHF
High-sensitivity receiver
Yes
Dog Tracking Features
LED beacon lights:
Yes (multiple colour options)
Sleep mode
Yes (Alpha products only)
Rescue mode:
Yes
Dog Training Features
Vibration
Not available in U.S.; may be available in other regions
Tone
Not available in U.S.; may be available in other regions
Collar compatibility
Up to 1″ (2.54 cm)
Stereo features
Software updates
Wi-Fi® technology (when charging and connected to network)
 
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