No products in the cart.
Audible up to 500 yards. Compact and lightweight transmitter in black. Includes antenna – lanyard – and belt clip. Features low battery Indicator light. 7 modes of operation and tone with vibration option. Nobody will ever wonder who’s in charge of the pack when you’ve always got a handy backup in the SportDOG SD-425 A-Series Replacement Transmitter. This durable and easy-to-use transmitter is intended as a replacement for the FieldTrainer 425. The SD-425 system is fully customizable allowing you the flexibility to set 2 or more transmitters to control the same collar receiver so there’s never reason that you and your pack should be out of touch.