For a cost-effective and reliable sensor-operated faucet built with durability and commercial environments in mind, here's Zurn's AquaSense Z6915 Series with Hydro-X Power. Self-sustaining hydropower and battery backup for ten years of trouble-free operation. Seamless and sleek, this 4-inch deck-mount sensor faucet will maintain its polished chrome-plated finish despite high usage. The battery-powered Z6915-XL's infrared proximity sensor senses the user for precise hands-free operation. For a long-term power solution, hardwired, plug-in, or our EcoVantage Hydroelectric Generator options are available. Its 1.0 gym laminar flow outlet and 30-second timeout feature save water and help keep costs down. Other flow control options include aerated and non-aerated with flow rates as low as 0.35 gym. AquaSense sensor faucets are constructed of high-quality lead-free cast brass making them a durable, water-efficient choice for new commercial and retrofit construction projects alike.