The SportDOG ADD-A-DOG Receiver SDR-AF is the original Collar Receiver for FieldTrainer 425 and SportHunter 825. Add another dog to your current SportDOG electronic training collar system or replace a Collar Receiver with the SDR-AF Add-A-Dog Receiver Collar. Comes with a convenient docking station that charges the collar in 2 hours.
- Compatible with: FieldTrainer 425, 425S; SportHunter 825,1225,1825; WetlandHunter 425CAMO, 1825CAMO; ProHunter 2525; HoundHunter 3225; UplandHunter 1875
- Pet Size: Larger than 8 lb.
- Maximum Neck Circumference: 24-1/2 in.
- Minimum Neck Circumference: 10-1/2 in.
- Low battery indicator
- DRYTEK Waterproof and submersible to 25 feet
- Limited lifetime warranty