This is an equipment that upgrades the traditional toilet flushing system to an automatic flushing system without replacing the existing toilet tank cover or handle. It uses advanced infrared sensor technology, and does not need to press and hold the flushing button (wave over half a bucket with your hand and hover over for more than 1 second to drain a bucket) to drain the water, ensuring hygiene and preventing cross-contamination, so all you have to do is wave your hand to flush within the detection range. Portable automatic infrared sensor has waterproof function, suitable for high humidity environment, suitable for high-end hotels, public places or home use, non-contact valve flushing assistant will help to maintain your toilet hygiene and quality of life. It's a device that upgrades a traditional toilet flush system to an automatic flush system without having to replace an existing toilet tank lid or handle It uses advanced infrared sensor technology, no need to hold down the flush bu-tton (wave the water half a bucket, hover for 1 second or more) to release water, to ensure hygiene and prevent cross contamination, so all you have to do is to wave your hand within the detection range to rinse Portable automatic infrared sensor is waterproof, suitable for high humidity environment, suitable for use in upscale hotel public places or at home, non-contact valve flushing assistant will help to maintain your toilet hygiene and quality of life.