Avoid contamination and cross contamination, minimize waste of water by using this smart automatic faucet. Touchless Faucets Help Stops the Spread Covid-19 and this smart faucet not only hygienic but will immediately reduces water waste by eliminating unnecessary and unattended water flow. The automatic faucet provides water only when needed. Additionally, since these faucets are preset to shut off after approximately 30 seconds, accidental flooding can't occur if a person leaves it running. And, because they are hands-free, they help reduce the spread of germs and keep the vanity area clean. Fits all standard US plumbing. Uses 4AA Alkaline Batteries (purchase separately).Water Pressure: 0.5 - 7.0 KGS/cm, 10-125 psi.