Designed for use with the Digital 1, the CU ALARM sounds an audible alarm in the event the steam room maximum set temperature is exceeded.  Choose from multiple alarm sounds.  Mounting in a standard 4x4 electrical box and cULus listed for general signaling, indoors, and outdoors, the CU Alarm is not for installation inside the steam room. NOTE: Pressing the CU Steam Stop will cause the alarm to sound.