Main Function:

Tunnel Air Quality Monitor (NO₂) professionally and popularly detecting the NO₂ concentration and visibility of 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 accuracy of ±0.04ppm, visibility accuracy of ±0.1x10^-3m^-1;

ü  User customizable NO₂ concentration;

ü  2 sets 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.