"Our automatic soap dispenser uses smart sensor technology. The ultra-fast detection time sensor response is about 0.26 seconds, and the scanning range is about 5 cm. Place your hand under the sensor and the pump will automatically release the liquid.Because the battery is installed at the bottom of the machine, when placing the machine, do not place the bottom on a damp table. If possible, place it on a hollow shelf or cushion it with dry things to prevent water from entering the bottom battery port and causing the machine. FaultOur hands-free soap dispenser adopts a neck curve design, does not leave water stains, and can be used safely in humid environments; waterproof technology can adapt to water mist, water vapor, water droplets and other environments; it is used in homes, schools, kindergartens, hospitals, hotels, etc. Ideal for hygiene control and prevention of colds and infections in public places such as railway stations, movie theaters, concert halls, and offices.Our non-contact soap dispenser adopts a large bottle caliber design, which is easy to fill up with washing liquid. It will pump out about 1ML of liquid each time. If you need more liquid, hold your hand and wait about 2 seconds. And soon more liquid will come outThe smart sensor soap dispenser is compatible with all types of liquids. It is also suitable for hand sanitizer, shampoo, shower gel/shower gel, washing powder, detergent and lotion, etc.; please note that it is not suitable for liquid alcohol disinfectant