Tiger-i 2000 CH2O

Formaldehyde (CH2O) is a known human carcinogen and as such, the accurate and effective measurement of this pollutant in our environment is critical. Indoors, formaldehyde is present in many man-made materials such as pressed wood products, carpets, and adhesives. We are also exposed to formaldehyde when using modes of transport powered by the combustion of fossil fuels.

Tiger Optics delivers a powerful analytical tool for the measurement of trace CH2O for diverse applications. Based on powerful Cavity Ring-Down Spectroscopy (CRDS), with a proprietary laser-locked cell, the Tiger-i 2000 is free of drift, guaranteeing consistent and reliable trace CH2O detection in ambient air. Highly specific to the target molecule, CRDS also prevents cross-interferences from distorting your measurement. Plus, there is no need to perform costly and time-consuming zero and span calibrations, saving both time and money with continuous, on-line service. The Tiger-i 2000 CH2O gives you unsurpassed speed of response and ease of use.

In sum, the Tiger-i 2000 CH2O analyzer serves a range of applications where trace gas measurement is extremely critical, such as indoor air quality monitoring, assessing outgassing from building materials, and optimization of vehicle powertrains. The Tiger-i 2000 CH2O builds on Tiger Optics longstanding leadership for trace monitoring of critical compounds.


Designed for formaldehyde analysis in laboratory, process, and indoor air quality applictions, as well as the detection of Airbourne Molecular Contaminants (AMCs), the Tiger-i 2000 CH2O offers:

  • Accuracy traceable to the world’s major reference labs
  • Freedom from the need for span calibrations
  • No periodic sensor replacement/maintenance
  • 10 ppb detection limit in ambient air
  • Wide dynamic range and no drift
  • Fast response


  • Air Quality
  • Power Generation from Fossil Fuels
  • Research & Development
  • Syngas & Fuel Gas Production


Detection and Matrix Range LDL (3σ) Precision (1σ) @ zero
CH2O in Ambient Air 0 – 100 ppm 10 ppb 3.5 ppb


Operating range See Detection Capability table
Detection limit (LDL, 3σ/24h) See Detection Capability table
Precision (1σ, greater of) ± 0.75% or 1/3 of LDL
Accuracy (greater of) ± 4% or LDL
Speed of response 3 minutes to 95%
Environmental conditions 10°C to 40°C, 30% to 80% RH (non-condensing)
Storage temperature -10°C to 50°C
Gas Handling System and Conditions*
Wetted materials 316L stainless steel, 10 Ra surface finish
Gas connections 1/4″ male VCR inlet & outlet
Inlet pressure 0 – 15 psig (1 – 2 bara)
Outlet pressure Vacuum (<10 Torr)
Flow rate ∼1 slpm
Sample gases Ambient air, clean dry air (CDA) or N2
Gas temperature Up to 60°C
Dimensions, H x W x D
Standard sensor 8.73″ x 8.57″ x 23.6″ (222 mm x 218 mm x 599 mm)
Sensor rack (fits up to two sensors) 8.73″ x 19.0″ x 23.6″ (222 mm x 483 mm x 599 mm)
Standard sensor 33 lbs (15 kg)
Alarm indicators 2 user programmable, 1 system fault, Form C relays
Power requirements 90 – 240 VAC 50/60 Hz
Power consumption 40 Watts max.
Signal output Isolated 4–20 mA per sensor
User interfaces 5.7” LCD touchscreen, 10/100 Base-T Ethernet, RS-232
802.11g Wireless (optional), Modbus TCP (optional)
U.S. Patent #7,277,177
*Oil-free vacuum source required, <10 Torr ultimate vacuum,
>1 m3/h pumping speed


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