SportDog, Add-A-Dog SDR-AXS (SD-425XS), X-Series FieldTrainer
The SDR-AXS Add-A-Dog® Receiver Collar is specifically designed for stubborn dogs, making it the perfect training tool. Its advanced technology ensures effective communication from the transmitter to the collar, providing consistent and reliable training results.
The unique selling point of the Add-A-Dog SDR-AXS (SD-425XS), X-Series FieldTrainer is its waterproof feature. This allows your dog to freely explore and engage in activities without the risk of damage to the collar.
Whether you're looking to expand your current SportDog electronic collar system or replace an existing Collar Receiver, the Add-A-Dog SDR-AXS (SD-425XS), X-Series FieldTrainer is the ultimate solution. Experience the benefits of an enhanced, reliable, and durable electronic training system with SportDog Brand® today.
System Compatibility
FieldTrainer® 425X (SD-425X), 425XS (SD-425XS), 425 (SD-425), 425S (SD-425S)
SportHunter® 825X (SD-825X), 1225X (SD-1225X), 1825 (SD-1825X), 825 (SD-825), 1225 (SD-1225), 1825 (SD-1825)
SportTrainer™ 575 (SD-575E), 875 (SD-875E), 1275 (SD-1275E)
WetlandHunter® 425X (SD-425XCAMO), 1825 (SD-1825XCAMO), 425 (SD-425CAMO), 1825 (SD-1825CAMO)
ProHunter® 2525 (SD-2525)
HoundHunter® 3225 (SD-3225)
UplandHunter® 1875 (SD-1875)
- Waterproof -Waterproof and submersible to 25 feet using DryTek® technology
- Dog Size -For dogs 8 pounds or larger with neck sizes 5" - 22"
- Batteries -Rechargeable lithium-ion batteries, charges in 2 hours, lasts 40-60 hours per charge
- Low Battery Indicator -Yes
Configured as an Add-A-Dog Receiver, this unit pairs with compatible SportDog transmitters to support a second working dog during field drills, upland training, or waterfowl retrieving tasks. In the field, handlers rely on consistent signal transmission when dogs work through thick grass, drainage ditches, or windy cover, helping maintain timing during whistle cues and collar corrections without interrupting training flow. The receiver's design withstands spray, mud, and damp conditions typical of marsh work and rugged upland terrain. For care, rinse off salt spray or mud after sessions, pat dry, and store in a dry place to maintain reliability. A two-hour recharge supports long field days, keeping the unit ready for back-to-back practice and trials. Regular inspection of the neck fit and contact points during training helps ensure consistent contact and minimizes downtime during water retrieves or field trials. When replacing an existing Collar Receiver, the Add-A-Dog SDR-AXS installs quickly, letting handlers keep pacing and timing aligned across dogs. Used in tandem-training scenarios, this accessory extends a seasoned program without altering transmitter ergonomics. In pheasant cover, wet meadow retrieves, or trials, the unit offers practical support for two-dog workflows. Use it to pair two dogs for synchronized field work.
SportDog, Add-A-Dog SDR-AXS (SD-425XS), X-Series FieldTrainer Q&A
What is the primary function of the SDR-AXS Add-A-Dog Receiver?
The receiver adds a second Collar Receiver to an existing SportDog system to support two-dog training.
What neck size and weight range does it fit?
For dogs 8 pounds or larger with necks 5 to 22 inches.
How should you care for the receiver after field use?
Rinse off mud and spray, pat dry, and store in a dry place to maintain reliability.
How long does a charge last and how long does it take to recharge?
A full charge provides 40–60 hours of use, and a recharge takes about two hours.
In what hunting or training scenarios is this receiver especially useful?
It supports field trials, upland training, and waterfowl retrieves where two dogs work in tandem.
Which systems is the SDR-AXS compatible with?
Compatibility includes FieldTrainer 425X, 425XS, and 425; SportHunter 825X, 1225X, 1825; SportTrainer 575, 875, 1275; WetlandHunter 425X, 1825; ProHunter 2525; HoundHunter 3225; UplandHunter 1875.
Can it replace an existing Collar Receiver?
Yes, it can replace an existing Collar Receiver and install with compatible transmitters.
Item Specifications
| Brand | SportDog |
|---|---|
| Model | Add-A-Dog SDR-AXS (SD-425XS) |
| Series | X-Series FieldTrainer |
| Compatibility | FieldTrainer® 425XS Stubborn Dog Remote Trainer |
| Waterproof | Yes, submersible to 25 feet using DryTek® technology |
| Dog Size | For dogs 8 pounds or larger with neck sizes 5" - 22" |
| Batteries | Rechargeable lithium-ion, charges in 2 hours |
| Battery Life | Lasts 40-60 hours per charge |
| Low Battery Indicator | Yes |
| Product Categories | sportdog 425xs, sportdog 425xs extra collar, sportdog 425xs replacement collar, sportdog electric collar, sportdog electronic collar, sportdog extra collar, sportdog field trainer, sportdog field trainer 425xs, sportdog field trainer extra collar, sportdog field trainer stubborn dogs, sportdog remote trainer, sportdog replacement collar, sportdog add-a-dog collars |
SportDOG FieldTrainer 425XS Add-A-Dog Collar: Enhance Your Dog's Training System
The SportDOG X-Series FieldTrainer Add-A-Dog Collar is designed to boost your electronic training collar system or replace a worn-out Collar Receiver. With the FieldTrainer 425XS, experienced and first-time pet owners can effectively and humanely train their stubborn dogs. The SDR-AXS collar is waterproof and submersible up to 25 feet using DryTek technology, perfect for dogs that love water.
The SDR-AXS Add-A-Dog Collar is an essential component for SportDOG electronic training collar systems. Designed for dogs 8 pounds or larger with neck sizes ranging from 5 to 22 inches, this collar caters to almost any breed. Its rechargeable lithium-ion batteries charge in just 2 hours and provide 40-60 hours of use per charge, so you won't need to worry about constant battery replacement.
Featuring a low battery indicator, the SportDOG X-Series FieldTrainer Add-A-Dog Collar ensures you're always aware of the collar's battery life, allowing you to plan your training sessions accordingly. With the top-notch performance of the SportDOG FieldTrainer 425XS, this collar receiver is guaranteed to improve your dog's behavior and obedience.