Smart water fountain with motion sensor for cat and dog, infrared, USB, universal pet detector. Description of smart sensor function: 1. Automatically turns on running water when the pet approaches, leaves the sensing area 2-3 meters away, filters for 30 seconds and then automatically turns off; 2. Advantages: quiet, energy-saving, extends the life of the filter element and water pump, and can better attract pets to drink more water 3. Induction range: approx. 0.2-3 meters. Area of use: all water dispensers with USB interface can be used. 4. USB socket: USB socket for easy connection. The total cable length is 1.6 m. Instructions: 1. Insert the USB plug of the fountain pump into the USB input of the sensor. Then insert the USB plug of the sensor into the adapter. 2. Attach the sensor to a place. (blank or smooth surface) If there are no pets nearby, it will remain stationary, but it will automatically circulate and filter four times a day, every six hours, to ensure clean water. Package includes: 1 x sensor Does not include water dispenser