Basic installation kit for PROTRONIC - non-touch, opto-electronically controlled thermostatic mixer DN 15 for installation in the wall for wash facilities. For connection to hot and cold water. Consisting of wall-installation box with lockable water quantity regulators and flush connector for flushing and pressure testing according to DIN 1988, waterproof electrical T-junction for connection to system cable (only for 24 V DC) and shell protection, 24 V DC / 230 V DC.