Efficient; Consistent Spa Temperature Control. The Digital1 Control Package is designed and packaged to provide spa operators with the ability to select the steam room operating temperature within tight tolerances and features a high temperature shutoff. The Commercial CU Digital 1 Control Package conveniently combines three main components needed to provide steam with a CU Generator. Digital 1 Temperature Control featuring in-steam-room temperature-regulating sensor; Advanced low mass; quick-response thermostat with sensor guard and integrated in-steam-room high temperature control; Electronic temperature control factory pre-installed with panel-mount design; Efficient; consistent control with full 100Deg F - 120Deg F range; Plate for optional remote installation in a standard 4x4 electrical box; Important: If more than one room is being serviced by one CU generator; the appropriate CU1- Digital 1 Package must be specified for each room; For use with CU360-CU1400 generators