Visibility meter
SENTRY is an electro-optical sensor whose function is measuring the visibility in air through the existing particles (suspended dust, gas emissions, fog, rain, snow, etc).
It uses the frontal dispersion principle, capturing a sample of light at an angle of 42º. The amplitude of this angle allows detection of particles of great size.
The advantages of SENTRY when compared to other visibility meters are:
1. Does not need to be calibrated at installation.
2. External vibrations do not affect the calibration of the sensor.
3. Wide range of detection.
There is a variant available with ATEX certification.
VISIBILITY METER