Feature: 1.Infrared automatic motion sensor can detect the area within 10 cm and spray automatically. 2.Just place your hand under the sensor to start the sprayer and you can effectively avoid cross infection without touching the alcohol dispenser. Suitable for home office hotel etc. 3.The non-contact dispenser of this hand cleaner is easy to use and only needs to open your hands to respond in 0.25 seconds. Instructions: Unscrew the water tank and add 75% alcohol of no more than 4/5 of the volume short press to turn on (the indicator light of the sensor window is on for 3 seconds) and the product enters the working state. If you need to shut down short press again Place your hand or object at 0-12cm above the sensor window the host can start spraying after infrared induction and automatically stop spraying in 15 seconds. If you need to spray again you need to re-sensing. Size: 84x60x76mm Package: 1 X Auto Sensor Dispenser/ 1 X USB Cable /1 X User Manual. Origin:CN(Origin)