The ICU or ICM (in the USA) is a sophisticated safety aid for fire fighters. It is part of the breathing apparatus and switches on an ‘Automatic Man Down’ alarm when the air is turned on. It also provides additional information to the fire-fighter such as Temperature, Time Remaining (based on actual breathing rates) as well as data logging all pressures, temperatures and alarms for later uploading via infra red link to a PC.

The ICU/ICM was designed for, and in conjunction with, MSA/Auer of Berlin. The product, which is owned by MSA, is manufactured in Berlin and sold around the world.