AQUATIMER - A3000 open combined shower fitting unit DN 15 for concealed mounting, with electronic time control and facility for chargeable water delivery with AQUAPAY coin-operated controllers and for externally controlling the options such as fitting settings and communication via ECC function controller. For connection to pre-mixed warm water or cold water. Adjustable flow duration, down to the second. Combined unit with waterproof electronic module, piezo switch with start/stop function for in-wall installation to customer-provided switch-box with stainless steel cover plate including dowels and TORX screws, waterproof electric T-junction for connection to system cable, solenoid valve fitting group with lockable water quantity regulation and dirt strainer. With flushing connector for flushing and pressure testing according to DIN 1988. Complete with 2 m sensor extension cable, 24 V DC.