Customize your Garmin TT25 GPS Collar for your dog and hunting style. Choose Full Size, Mini, or Rugged, then select a Standard or Extended-Life Battery, collar color, and available options.
Recommended Garmin TT25 Configuration
TT25 Full Size The most popular choice. Includes the Standard GPS Flex Band and fits most medium to large hunting dogs.
TT25 Mini A smaller GPS Flex Band designed for smaller dogs and smaller neck sizes, including Beagles and Terriers.
TT25 Rugged A more durable GPS Flex Band designed for added protection against cuts, animal bites, and hard use. Recommended for hog, coyote, and bear hunters who need extra durability.
Which Garmin TT25 Battery Should You Choose?
Standard Battery The best choice for most hunters. Keeps the TT25 lighter and more compact while providing excellent battery life.
Extended-Life Battery Best for hunters who want maximum runtime between charges. The Extended-Life Battery adds only 3/16" to the collar's width and approximately 0.8 oz of additional weight, while providing up to 138 hours of battery life in Dynamic Tracking Mode.
NOTE: We have received alot of User Feedback on Bark detection on the TT25 collars that they do not function as expected. For this Reason, we do not recommend buying a TT25 collar if you are expecting Bark detection as a Feature, You will need to work with Garmin to get Bark detection to work properly for your dog, and we expect you will likely be disappointed with the results. The following Information was removed from our Product Description:
Bark detection: The collar features a built-in bark sensor that can be configured to send notifications to your handheld device when your dog barks,
Double U Does not recommend users purchase tt25 collars if they are expecting Bark Detection to meet their expectations. For this reason, we have removed the Bark detection information on our website below.
New Feature Garmin TT25/T20 Dynamic Update Rate
A new update rate option is a dynamic update rate, a feature designed to help conserve battery life. By adjusting the update rate based on your dog's speed and movement, the GPS tracking collar uses power more efficiently, allowing for longer battery life on a single charge. If a Dog is not moving or is in the same situation there is little need to send the same update every 2.5 seconds, Only After the information changes will the collar use its battery to send out the new information. If hunters do not like this setting, they can still use the standard 2.5,5-,10-, 30- and 2-minute update rates as before. We have found that the dynamic update rate is very helpful, It gives me longer battery life by conserving when the information is the same, However it’s more accurate tracking when the dogs are moving.
New Feature Garmin TT25/T20 Multi-Colored Beacon lights
Discover the versatility of our new multicolor LED lights located on the sides of the gps tracking collar, designed to make it easy for hunters and pet owners to keep track of their dogs in the dark. With the TT25 you now have the ability to switch tracer lights between Red, Green, Blue, Yellow, Cyan, and Magenta and white. This allows you to maximize your hound/dog visibility or you can match/differentiate your different dogs so you can easily tell where each of your dogs are at night.
New Feature Garmin TT25/T20 Beacon light Location
The location of the Beacon lights were moved to the corner of the GPS collar, This greatly improves the safety of the dog when crossing roads or navigating through the wilderness. With the lights placed on the corners of collars, your dog is more visible to drivers and easier to track from various angles. For example, if the dog is walking across a Road the lights will be more visible to the driver compared to a TT15 or TT15 mini where the lights are only visible directly in front of the dog or when the dog is walking directly toward you. Compared to the previous Garmin collars the visibility and function of these lights are awesome!
New Feature Garmin TT25/T20: Long Battery life
Experience the convenience of long-lasting battery life with The Garmin TT25. Equipped with a standard battery, it delivers an impressive 68 hours of dynamic tracking, outperforming the Garmin TT15 Mini GPS Tracking and training collar. However, it falls short of the TT15X's battery life. But don’t worry! If you need the longer battery life you can upgrade to the optional extended life battery (sold separately), and enjoy up to 138 hours of tracking with dynamic tracking, matching the battery life of The TT15X.
New Feature TT25: Wi-Fi Compatible Collars
Experience seamless Update the TT25/TT20 GPS tracking collars with Wi-Fi. Previously you would need a computer and internet connection connecting to the collar with the clip, now with the TT25 once you connect to your Wi-Fi it will automatically update software directly through Wi-Fi, ensuring you always enjoy the latest software fixes enhancements while the collar is charging. (Note: that the collar will need to be connected to the charger for 25 minutes before it will pull and install the new software).
New Feature TT25: Ability to replace the GPS parts of the collar either when broken or with different sizes.
Replacing the GPS antenna on the TT25/T20 collar is simple, you just need to remove and replace two-Philips screws that hold the GPS antenna in place. Users may want to replace a broken antenna, or easily switch between different size antennas to accommodate a small or large dog. Additionally, a more Rugged version is available for those needing more durability like Hog Hunters. Currently, the Small Dog and Rugged antennas are sold separately, providing you with the flexibility to customize your collar according to your needs and preferences. The new and improved connection uses a Pogo pin style connector, so it’s almost impossible to damage them when swapping GPS antennas. Fun Garmin GPS Product History Fact! If anyone remembers replacing the collars and the connector on the Garmin DC30 GPS Antenna connector, You know exactly the hassle we are talking about and why this is so important! We were really pleased with how Garmin made these types of Connections easy with less chances of installing wrong or worse breaking things!
Small changes on the Garmin TT25/T20:
Another subtle yet significant improvement by enlarging the gap where the collar slides through. For those who have experienced the difficulty of switching straps on Mini and Full-size collars, this enhancement offers a more user-friendly design. With these improved collars, you'll find it much easier to replace the straps, ensuring a hassle-free experience.
The housing uses Rounded Edges like the Mini Collar.
A thoughtfully designed battery housing features rounded edges much like the TT15 Mini Collars, ensuring ultimate comfort for dogs with short legs, such as small-sized beagles. The smooth contours of the housing prevent any discomfort or injury, making it the ideal choice for pet owners who prioritize the well-being of their furry friends. With this collar, even the smallest of beagles can enjoy a secure and comfortable fit.
Replacing the Battery: (Optional Extended Life Battery)
Swapping out batteries, even the optional extended life ones, is a total breeze with this updated design! Gone are the days of the hassle with the earlier TT15 collars, where you had to disconnect a small white battery connector and risk damaging the wires. Now, just undo the six simple screws around the edge and let the alignment guides help guide the connector. But here's a personal tip from Buddy: make sure to check that the gasket is in place when changing the batteries. We almost didn't notice that the original gasket stayed on the board when we swapped ours, and so we nearly ended up stacking two gasket seals when installing our Extended Life batteries. So just keep an eye on that to avoid any mishaps. With this fresh approach, changing batteries with the TT25/T20 is a much better experience than all the previous Garmin Collars.
The TT25/T20 has all the Same Features as the TT15X and TT15 Mini
GPS/GLONASS tracking: The TT25 collar uses both GPS and GLONASS satellite systems, providing accurate and reliable tracking even in challenging environments.
Training functionality (Only TT25): The collar allows for 18 levels of continuous and momentary stimulation, as well as audible tone and vibration options, giving you the flexibility to train your dog using the method that works best for both of you.
Long-range tracking: The TT25 collar is capable of tracking the same distance as the TT15X
Waterproof design: With a water rating of 1 ATM (10 meters), the collar is built to withstand water exposure, ensuring durability during your outdoor adventures.
Replaceable collar straps: The TT25 collar comes with interchangeable straps, allowing you to customize the look of the collar or replace worn straps with ease.
Compatibility: The Garmin TT25 collar is compatible with all the current handhelds Garmin Alpha 10, 100, 200, 200i, 300, 300i, 550+ and Astro 430 handheld devices, enabling you to track and train multiple dogs simultaneously.
Rescue mode: In case the battery level drops below a certain threshold, the collar automatically switches to rescue mode, prolonging battery life by reducing the update rate and giving you more time to locate your dog.
Collar sleep mode: This feature allows you to remotely put the collar to sleep when not in use, conserving battery life.
TT25 Replacement Parts & Accessories.
One of the advantages of the Garmin TT25 is that many of the most commonly damaged or worn components can be replaced without replacing the entire collar. Double U Hunting Supply carries TT25 replacement batteries, charging clips, GPS Flex Bands, VHF antennas, screws, contact points, collar straps, and other repair parts to keep TT25 collars working and in the field.
The Extended-Life Battery provides up to 138 hours of battery life in Dynamic Tracking Mode while adding only 3/16" to the collar's width and approximately 0.8 oz of additional weight.
Full Size – Standard replacement GPS Flex Band for most medium to large hunting dogs.
Mini / Zero-Length – Smaller GPS Flex Band configuration for smaller dogs and smaller neck sizes, including Beagles and Terriers.
Rugged – Reinforced GPS Flex Band for added protection against cuts, animal bites, and hard use. Recommended for hog, coyote, and bear hunters who need additional durability.
TT25 Antenna & Repair Hardware
A damaged or worn VHF antenna can be replaced without replacing the TT25 collar.
Tuff Skin VHF Antenna – Full Size Durable replacement VHF collar antenna for standard/full-size TT25 configurations. Available in multiple colors.
Tuff Skin VHF Antenna – Mini Shorter replacement VHF antenna for TT25 Mini configurations and other compatible Garmin Mini collars.
Garmin TT25 Replacement Screw Kits Replacement screw sets for common TT25 repairs, including GPS/Flex Band screws and battery housing screws.
Locking Antenna Holding Clips Helps hold the TT25 VHF antenna securely against the collar strap and provides additional protection during hard use.
Loose one of your Garmin training contact points? We have you covered.
Garmin Contact Point Kit Replacement Garmin contact kit compatible with the TT25 and other Garmin training collars.
Used Long Contact Points Replacement long contact points for dogs that require additional contact length.
Used Short Contact Points Replacement short contact points for dogs where the longer contacts aren't necessary.
Garmin TT25 Accessories & Upgrades
TT25 Beeper
Garmin TT25 Beeper Add audible beeper functionality to your TT25 for additional ways to locate and monitor your dog in the field.
TT25 Maintenance
Protect TT25 Electrical Connections
Dielectric Grease Useful when servicing your TT25 and maintaining electrical connections, including connections around the replaceable GPS Flex Band. A small amount of dielectric grease can help protect electrical connections from moisture and corrosion.
FAQ for Garmin Alpha TT25 Collars
What is new with the Alpha TT25 Collar?
The Garmin Alpha TT25 Collar GPS tracking and training collar specifically designed for hunting and tracking dogs. It provides all the features of Previous model with a few new features. User replaceable GPS Straps (Flex Bands), Upgradable and Configurable components like Extended Life Battery, or Rugged Flex bands. These are also replaceable for Repairs, Also Dynamic Tracking mode greatly extends the battery life of the collars. The Beacon Lights are color selectable, and the lights are in a location that is easier to see.
What devices are compatible with the Garmin Alpha TT25 Collar?
The Garmin Alpha TT25 is compatible with the Garmin Alpha 300, and 300i, 200, and 200i, Alpha 10, and Alpha 100 and Pro 550 Plus handheld devices. These devices are sold separately.
How far is the tracking range on the Garmin Alpha TT25?
The Garmin Alpha TT25 Collar is claimed to have a tracking range of up to 9 miles in marketing materials, however in our experience users should expect around 1 mile distance with the antennas provided. You can upgrade and connect to an extended range antenna like our truck antenna will increase your distance by up to 2- 3 times. challenging terrains and environmental effects are very difficult to know what exact distance you will see. .
Can I use the Garmin Alpha TT25 Collar without cellular service?
Yes, the Garmin Alpha TT25 operates independently of cellular networks. It relies on GPS and GLONASS satellite systems and transfers the Signal to the handheld using a MURS radio signal to provide real-time tracking and training, which is ideal for remote areas without cell coverage.
What kind of battery life can I expect from the Garmin Alpha TT25?
The Alpha TT25 offers a battery life that ranges from 24 to 68 hours, depending on the settings and frequency of updates. There is an extended battery life option that increases uninterrupted tracking during longer hunting trips or extended outdoor excursions you could see up to 138 hours with the extended Life battery in Dynamic Tracking mode.
How durable is the Garmin Alpha TT25 for outdoor conditions?
Designed for rugged outdoor use, the Garmin Alpha TT25 Collar is highly durable, featuring water resistance up to 10 meters (1 ATM) and robust construction that withstands harsh weather conditions, including rain, mud, and dust.
How do I train my dog with the Garmin Alpha TT25 Collar?
The Garmin Alpha TT25 Collar provides various training tools, including customizable tone, vibration, and stimulation levels. Users can train dogs effectively by adjusting the intensity settings based on individual training needs and behavioral responses.
Can I use the Garmin Alpha TT25 Collar with multiple dogs?
Absolutely. Most Garmin Alpha systems can track up to 20 dogs, (The exception is the Pro 550 Plus is only 3 dogs), The Garmin Alpha TT25 is designed for multi-dog systems. When paired with compatible handheld devices, users can track and control multiple collars, ideal for users managing several dogs during training or hunting sessions.
Does the Garmin Alpha TT25 offer night visibility?
Yes, the Alpha TT25 Collar includes user-controlled LED beacon lights that enhance visibility in low-light conditions, such as nighttime or foggy environments. These lights are visible from a distance, adding an extra layer of safety and tracking accuracy, You can change the color of the light for different dogs making it easier to see your dog’s location in the dark
How do I update the software on my Garmin Alpha TT25 Collar?
To update the software on your Garmin Alpha TT25, connect it to Garmin Express on your computer. Garmin regularly releases updates to improve performance, add new features, and enhance compatibility. The Garmin TT25 collars are also Wi-Fi Compatible, we recommend that you take the time to setup your home WI-FI information on the collar, this way it will automatically check for TT25 Software updates each time you plug in to charge. Ensuring that you have the latest software.
Can I track my dog’s activity history with the Garmin Alpha TT25?
Yes, the Garmin Alpha TT25 allows users to review a dog’s activity history, helping trainers assess behavior patterns, activity levels, and movement routes during training or hunting activities.
Is the Garmin Alpha TT25 Collar suitable for all dog sizes?
The Garmin Alpha TT25 Collar is adjustable and designed to fit a wide range of dog sizes. Selecting the Flex Band is the biggest change for the size of dogs. However standard Flex band and Rugged Flex-bands are best suited for medium to large-sized dogs due to the collar’s overall design and weight. We recommend the Zero Flex Bands for small dogs such as Beagles with Small necks. Give us a call if you have any questions, we can help you get the right configuration for your dog. Always ensure a proper fit for both comfort and effectiveness.
