Open combined shower fitting DN 15 for built-in installation, with electronic time setting and option for paid use of water with AQUAPAY-coin machines and external control of options such as fitting settings and communication via ECC feature controller. For connection to pre-mixed hot water or cold water. Running time adjustable to the second. Combined unit with watertight electronic module, piëzo switch with start and stop function, for concealed installation with control panel, with stainless steel cover plate including plugs and torx screws, waterproof electric Tee for connecting to system cable, solenoid, lockable water volume control and sieve. With flush unit and pressure test according to DIN 1988. Complete with 2 m long sensor extension cable, 24 V DC.