These advanced sensor faucets are designed for high-traffic restrooms, featuring anti-erosion, anti-abrasion, and high-strength construction. They significantly reduce water waste by automatically controlling flow, fitting all standard US plumbing, and operating on 4AA alkaline batteries (sold separately). Suitable for commercial use with a wide water pressure range of 0.5 - 7.0 KGS/cm (10-125 psi).