These probes are compatible with the following products:
- Petsafe 250m Trainer
- Petsafe 400m Trainer
- SportTrainer 350m (SD-400E)
- SportTrainer 450m (SD-425E)
- SportTrainer 500m
- SportTrainer 700m (SD-800E)
- SportTrainer 700m (SD-825E)
- SportHunter 800m
- SportDog Pistol Grip 400m Trainer
Pick from short (approx 1cm) or long (approx 1.5cm).