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Replacement Transmitter (SD-425 & 425S)

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. Consult your Owner's Manual for set up instructions. This is also the replacement training transmitter for the Contain + Train™ System.
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Gear The Way You'd Design It