Main Function:

Tunnel Air Quality Monitor (CO) professionally and popularly detecting the CO concentration and visibility in the tunnel.

Performance Features:

ü  Gas filtration technology; 

ü  Accurate measurement on gas interference;

ü  Transmission method on visibility;

ü  High accuracy;

ü  Multifunctional, extensible, integrated real-time monitoring;

ü  All-weather automatic operation and alarm;

ü  Using advanced infrared wavelength response technology to achieve co concentration accuracy up to ±0.1 ppm and visibility accuracy as high as ±0.1x10^-3m^-1;

ü  User can customize the concentration of no and co;

ü  Three groups of limit value alarm, fault alarm passive switch contact;

ü  Simple structure, easy to install, use and maintain;

ü  Excellent workmanship, good dustproof, waterproof, corrosion resistance.