voltage:DC6V(4AA alkaline batteries)
 power consumption<5Ua(4AA alkaline batteries  lasts 2 years based on 300 cycles a day
sensor zone:30cm(the data based on 30cm*30cm standard whiteboard,the distance will adjust by itself according to the its environments
lnlet and out let dia.G(1/2")
water pressure:0.05-0.7MPa
surface:Brass with chrome