SportDOG SDR-AX Add-A-Dog® Collar Receiver
$160.99
Add to Cart The universal add-on collar for the SportHunter 1225X, SportHunter 1825X, SportTrainer 1275, and SportTrainer 875. Adds a dog to your existing system — same DryTek waterproofing and lithium-ion battery as the base collar.
Add a second dog to your SportHunter 1225X, SportHunter 1825X, or SportTrainer 1275
The SDR-AX is the Add-A-Dog receiver collar for SportDOG’s larger 1000-series systems. If you own a SportHunter 1225X, SportHunter 1825X, or SportTrainer 1275, this is the correct add-on collar. It pairs directly to your existing transmitter in minutes and gives you independent control of each dog from the same handheld. Also works as a direct replacement if your original collar receiver is lost or damaged.
DryTek waterproofing makes it submersible to 25 feet. The larger 1000-series battery delivers 140–160 hours per charge — significantly longer runtime than the 400/800-series collars — with a 2-hour charge time.
Compatible systems
| SportHunter 1225X | SD-1225X |
| SportHunter 1825X | SD-1825X |
| SportTrainer 1275 | SD-1275, SD-1275E |
| ProHunter 2525 | SD-2525 |
Specs & features
| Waterproofing | DryTek — submersible to 25 feet |
| Battery | Rechargeable Li-ion — 2-hour charge, 140–160 hours per charge |
| Dog size | 8 lbs and up, neck sizes 5”–22” |
| Collar strap | 3/4” biothane strap included |
| Low battery indicator | Yes |
| Charging | Docking station included |
Have a FieldTrainer 425X, SportHunter 825X, or SportTrainer 875? Those systems use the SDR-AXF instead. The SDR-AX and SDR-AXF are not interchangeable.
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