Easy to operate; Stop the spread of germs & bacteria; Environment friendly. Minimize waste of water; Prevent scalding injury. Power Consumption: less than 0.5mW Power : DC6V (4AA Alkaline batteries) Fits all standard faucets. Powered by four batteries which eliminates the need to run any electrical lines to the system. It is designed for ease of installation in new and retrofit applications. Hands-Free Sanitary Operation Water supply pipe size: DN15 Vandal-Resistant Aerator Ambient temperature range: 0.1 - 45 degrees Automatic 30-Second Time Out Highly-Polished Uses 4AA Alkaline Batteries. Water Pressure: 0.5 - 7.0 KGS/cm, 10-125 psi. Low Battery Indicator Light In-Line Filter Pop-up drain Brass solenoid valve Factory Set Sensor Range Two -Year Warranty Additional Features: Intelligent: with its micro-computer controlling its action, the faucet will self adjust its best detection zone as per the color and shape of lavatory Low power consumption: 4AA alkaline batteries can be used for 2 years at 200 cycles a day Convenient to maintain: Built-in strainer prevents sundries from entering the solenoid valve and the strainer is easy to clean USA Seller - Brand New - 100% Satisfaction Additional Details ------------------------------ Package quantity: 1