Contech Water Dog Automatic Outdoor Pet Fountain by. Contech Electronics Inc.The Contech WaterDog ensures your dog always has fresh, cool water to drink. When your pet gets within 3 feet of the WaterDog system, the smart sonar sensing technology automatically turns the WaterDog on. Once your dog leaves the 3 foot area the water automatically turns off.No more worrying about filling the water bowl, or if your pet is drinking stagnant water out of a bucket. This automatic outdoor drinking fountain operates for up to one year on 4 C-cell batteries, and connects quickly and easily to an outdoor faucet.An additional flow-through connector is included to connect to your water hose. Keep your dog healthy with fresh, clean water from the WaterDog!