[SMART SENSOR DETECTION] This SCCES Soap Dispenser has a smart infrared sensor. When it detects your hand, fast foaming speed at 0.25 seconds, Lather is fairly thick and rich, and the amount of foaming each outflow is appropriate, no dripping or trailing, save on soap. After several months of testing, the sensor detects hand motion and soap dispenses normally.[IPX4 WATERPROOF & DURABLE] This touchless soap pump is made of ABS plastic and has a good sealing performance. Which makes sure the battery box and circuit board can prevent soap and water. It also never leaking soap from the bottom of the dispenser.[LARGE CAPACITY & POWER SAVING] With a large capacity of 13.5oz / 400ml, you do not need to supply soap every several days. You can see the level of the soap as it has a clear tank. With 4 AA batteries power supply, it can last more than half a year. If the battery runs out, you can change the battery very easily.[ENJOY HEALTHY LIFE] SCCES touchless hand soap dispenser has two adjustable soap volumes for adults and kids. Which makes it fun to wash hands. Then enjoy a healthy life. With it, GET YOUR KIDS TO LOVE WASHING THEIR HANDS.[CERTIFICATION & WARRANTY] Assured quality by FCC, one year's warranty. We guarantee the quality of all SCCES products. NOTICE: Please check the intake hole at the bottom of the catheter whether it is blocked or not. Because the catheter was too long and was pressed against the side of the tank. If it is blocked, please cut about 1/16 of an inch off the bottom of the catheter, and then it will work.