This SportDOG Brand® Transmitter battery kit for YardTrainer and SD-425 Series transmitters includes a rechargeable battery, Operating Guide, gasket, and screwdriver.

System Compatibility:

• FieldTrainer® 425, (SD-425), 425S (SD-425S), 425X, (SD-425X), 425XS (SD-425XS) (FT-125 transmitter)
• WetlandHunter® 425 (SD-425CAMO), 425X (SD-425XCAMO) (FT-125W transmitter)
• YardTrainer 100/100S/300 (YT-100, YT-100S & YT-300)
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