This is an Programmable automated Sensor Based touch free Sanitizer dispenser with || User can control the sanitizing duration time by adjusting the knob switch provided to control of sanitizer liquid at his/her hands to completely remove all germs || A Green Led is also at work and light up on hands when hand is placed under the unit, directly green light fall on your hand to view the unit is dispensing sanitizer || Easy to refill by directly pouring sanitizer in from the top || Internally High quality design to last long || 6-Month Manufacturing warranty.