Auto Flush Clamp for toilets offers intelligent technology and a smart design. Touch-free, automated flushing system with adjustable sensor range helps keep washrooms looking presentable and smelling clean. It also promotes good hygiene by eliminating potential points of cross-contamination. Installing this chrome auto flush is easy. No water shutoff is required. Auto Flush system quickly retrofits existing washroom fixtures. The clamp-mount model slides over handles for quick installation. Once installed, Smart Object Infrared Technology manages flushing automation for world-class reliability. Long battery life lasts approximately three years or up to 60,000 flushes. Auto flush uses four C batteries (included).