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Replacement Transmitter for the SportDog SD-425E Remote Training System. For coding instructions, download the product manual in the 'Product Manual' tab.
SportDOG FieldTrainer Remote Trainer - SD-425E
SportDOG SD-425E/SD-425S Transmitter Replacement Battery Kit (SAC54-13734)
SportDOG FieldTrainer SD-425S Remote Trainer
SportDOG SD-425E, 825E & TEK 1.0 Replacement Charger