TruTest enables fire alarm technicians to measure the sensitivity of
installed smoke detectors quickly, accurately, easily, and professionally. A
revolutionary product, TruTest not only introduces a smoke test aerosol through
the vents of the installed detector to the sensing chamber, but operates using a
precision closed loop system measuring smoke obscuration and feeding back
information to a controlling microprocessor.
Smoke 400 Aerosol Sensitivity Tester with this unit.
Detector sensitivity can, and does, drift. Over-sensitivity leads to false
alarms, under-sensitivity to late alarms - or no alarms. The need for functional
testing through introducing a smoke type stimulus is well recognized: