Opastop® GP3050ST
Dust Monitor

Air Quality Sensors for Tunnels and Parkings

Air Quality Sensors for Tunnels and Parkings

Air Quality Sensors for Tunnels and Parkings Pillard Opastop® GP3050ST monitors dust level in road and train tunnels as well as underground parkings, providing continuous and accurate measures of air quality.

An ultimate solution

The Pillard Opastop® GP3050ST is the ultimate solution to measure pollution level in traffic areas (road and train tunnels, underground car parks), ensuring air quality and visibility. The air sample drawn through an integrated fan crosses a measuring vessel fitted with a high power light emitting diode and a measuring cell. As a result, this cell positioned at 90 degrees to the emitting diode estimates opacity by the reflection of light on the particles in suspension. Then, a second cell located opposite the emitting diode is used to monitor and quantify the optics fouling to automatically correct any drift.

Accurate and real-time measures

Air Quality Sensors for Tunnels and Parkings provide accurate results eliminating distorted measures due to monitor fouling. Also, the optical back-scatter on 2 sample points allows continuous dust level readings.

Quick and easy maintenance

The  Air Quality Sensors for Tunnels and Parkings Pillard Opastop® GP3050ST fully clipsable design enables efficient and safe maintenance operations, each piece for a faster and easier maintenance. Moreover, the sealing of the turbine ensures a longer life cycle and an optimised use of the dust monitor.