Delta 4” center proximity faucet

I have two Brand new delta 4” cen-cen proximity sensor faucets. Was going to install as a project in my basement basin but made other plans. These require a 24 volt power source (transformer) or battery power source, also have a mixing valve for hot & cold water source which i can include. I was going to install one & keep the other as a part source. These work on your hand being close to spout to activate, then they go off when hand is removed from area of spout. These are quite expensive to buy new & might appeal to another plumber as a showcase for new technology.Looking for $200 for both .