SportDOG SD-425 A-Series Replacement Transmitter Black
Replacement transmitter for the FieldTrainer 425 and 425S. The SD-425 system is fully customizable, allowing you the flexibility to set 2 or more transmitters to control the same collar receiver.
• Modes of operation: 7
• Expandable up to 3 dogs
• Range up to 500 yards
• Tone and Vibration options
• DRYTEK waterproof and submersible to 25 feet