Mr Steam AlarmSystem For Commercial GeneratorsDescription The CU Alarm is an audible alarm that sounds in the event that the steam room maximum set temperature is exceeded, or if the CU SteamStop button has been pressed. The CU Alarm may be mounted outside the steam room in a location that will alert an attendant and or user to an over temperature condition. Technical Specifications Suitable for use with the Digital1 Control Package Choose from multiple alarm sounds Mounts in standard 4x4