Popular applications include the detection of gases such as carbon oxides (COx), nitrogen oxides (NOx), and hydrocarbon gas (CxHy) for environmental studies.

• Long wavelength range: 1500 to 3400 nm
• Gas purging ports to reduce water vapor effects
• Built-In cut filter for high order diffracted light
• Double Speed Mode to further enhance fast measurement speed
• High sensitivity down to -65 dBm
• High resolution to 0.1 nm
• Wide close-in dynamic range (55dB)
• Fast auto-calibration
• Free space optical input for maximum flexibility, low maintenance, and high reliability  
• Applicable to single-mode and multimode fibers
• Excellent performance for environmental gas sensing Laser Spectroscopy 
• Indispensable tool for R&D and manufacturing of optical devices in the wavelength range from telecom band to 3.4μm