GROHE Ondus Digital basin mixer for free-standing basins single hole installation wireless sensual touch operating panel with long life 3V lithium battery CR-2032 function unit integrated temperature sensor plug power supply 230 V AC / 6 V DC integrated battery back up 6V lithium-battery, type CR-P2 GROHE Ondus® flow straightener Push-open waste set 1 1/4" flexible connection hoses flow limiter 6 l/min programmable, automatic safety shut-off (with default setting) CE approved type of protection: faucet IP 66 plug power supply IP 40 battery unit IP 66 operating panel IP 57