For monitoring: CH2O (Formaldehyde, Methanal)

Laser Absorption Spectroscopy

The TRACE-GAS CH2O analyzer combines reliability, fast response and ease of use in one instrument. Designed for calibration-free and direct measurement of formaldehyde (CH2O).

You want to directly measure CH2O in your exhaust gas? We can provide a solution for hot-wet measurements with our LASmini! Send an enquiry here.

  1. Key Features
    • no cross sensitivities
    • no calibration required
    • selective, continuous real-time measurement
    • spectral correlation check
    • no formation of condensate
    • no consumables
    • no additional components (ready-to-use)
    • purely physical measuring principle required
  2. Applications
    • Stationary (test chambers) + transportable measurement (battery operation)

    • Monitoring of outgassing from indoor building products

    • Formaldehyde measurement in exhaust gas from gas engines/turbines

    • Online concentration measurement for process control (continuous measurement)

    • Concentration monitoring at the workplace

    • Indoor air monitoring

    • Fence-line monitoring

    • Emission monitoring of wood products

    • Emission measurement of vehicles


  3. Technical Data

    Technical dataLAS CH2O
    Ambient temperature10 - 35 °C
    Ambient pressure800-1100 mbar
    Gas flow< 0,8 l/min
    CommunicationModbus TCP/IP + analog output 4 - 20 mA
    Dimensions (L x W x H)567 x 485 x 221 mm, 19" housing
    Weightapprox. 19 kg
    Supply voltage100 - 240 V AC/50 - 60 Hz

  4. Specifications

    Measuring range (FS)0 - 10 ppm
    Limit of detection (LOD) 1≤ 5 ppb (2σ)
    Response time (t10-t90) 2≤ 30 s
    Linearity (greater of)≤ ± 0,5 ppm or ± 1 % of measured value
    Zero drift≤ 50 ppb in 8 h
    Span drift≤ ± 1 % FS in 8 h
    1 lower detection limits on request
    2 depending on flow and filter settings

Need help?

We look forward to help you choose the perfect gas analysis products for your needs. Talk to us about different technologies and our gas analyzers or OEM sensors.


    Osterwalder Straße 12
    D-87496 Hopferbach


    +49 (0) 83 72 - 70 80