Garmin Alpha T20 GPS collar

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).

Unit dimensions (WxHxD)	3.2" x 1.8” x 1.4” (8.1 x 4.5 x 3.5 cm)
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
Range	9 miles
Interface	USB-C
Water rating	1 ATM (10 meters)
Neck size	with standard 1” collar strap: minimum of 9.5” (24 cm) in circumference with flipped 1” collar strap: minimum of 6.5” (16.5 cm) in circumference
High-sensitivity GPS/Galileo receiver	yes
GPS antenna	top-mounted, orange
Vibration/tone	not available in the U.S.; may be available in other regions
LED beacon lights	yes (multiple color options)
Flex band	user-replaceable
Sleep mode	yes (Alpha Series only)
Rescue mode	yes
Frequency mode	MURS
Replaceable collar straps	yes
Collar compatibility	up to 1" (2.54 cm)
Automatic software updates	Wi-Fi technology (when charging and connected to a network)