Main Function:

Tunnel Air Quality Monitor (NO, CO) professionally and popularly detecting the NO and CO concentration and visibility in the tunnel.

Performance Features:

ü  Non-contact infrared technology; 

ü  Accurate measurement capability;

ü  Self-calibration function;

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.

Application Fields:

ü  Specially designed for tunnel harsh environment, good seismic effect,;

ü  Especially suitable for thunderous and rainy areas.