This item is build with an additional top sensor to allow continuous flow of water. This allows the faucet to shine in both a commercial or residential arena. Imagine a trouble-free faucet system - one that eliminates costly maintenance and repairs. Traditional sensor faucets are prone to problems simply from daily operation. These messy repairs and high service costs render them highly unappealing. iKool engineered a modular design with servicing and maintenance in one elegant solution – making servicing your sensor faucet easy. Anyone can do it! With a simple twist of the faucet, the unit will detach from the base for easy replacement and repair. All without turning off the water source. The included deck plate allows the installation of pre-drilled center set counter tops. No more crawling underneath the sink! No more difficult plumbing repairs! iKool is the solution you have been waiting for.