The Bully Dog Sensor Docking Station is a great, and easy way for you to check on the well-being of your vehicle. This accessory is custom made for the GT and Watch Dog product lines. It makes it easy to install aftermarket automotive sensors onto a vehicle and then display those sensor values on your GT or Watch Dog. The Sensor Docking Station supports a multitude of different sensor types, including: 1. Exhaust temperature sensors 2. Pressure sensors (oil pressure or boost) 3. Speed sensors 4. Temperature sensors (transmission temp, air intake temp).