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NEO Monitors LaserGas II SP Laser Gas Analyzer (TDLAS)

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NEO Monitors LaserGas II SP

Measured parameters: CO (Carbon Monoxide), CO₂ (Carbon Dioxide), O₂ (Oxygen, Gas), CH₄ (Methane), H₂O (Water Vapor / Moisture)

Measurement method: TDLAS Laser Absorption

LaserGas II SP is an in-situ TDLAS laser analyzer for O2, CO, CO2, H2O and CH4. Sold, installed and serviced in Türkiye by Tetra.

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Installation, calibration, spare parts and service in Türkiye come from Tetra; cabinet and panel integration can be done at our İzmir facility.

Technical information

Measurement principle
TDLAS (tunable diode laser absorption)
Measured gases
O2, CO, CO2, H2O, CH4 (depending on configuration)
Optical path length
0.5 – 20 m
Response time
1 – 2 s
Outputs
4–20 mA, RS-232, relay; optional TCP/IP, Modbus
Supply
100–240 VAC, 50/60 Hz
Protection class
IP66

LaserGas II SP is a single-pass in-situ analyzer that measures a single component in process or flue gas directly in line by tunable diode laser absorption spectroscopy (TDLAS). Laser light travels between a transmitter on one side of the gas duct and a receiver on the opposite side; the reduction at the target gas's characteristic absorption line is converted to concentration. Because no sampling line, conditioning or consumables are needed, response time is on the order of seconds.

Available configurations include O2 (% and high-temperature applications), CO (ppm and %), CO2, H2O, CH4 and combined CO+CO2 measurement, and hazardous area options such as ATEX/IECEx Ex-n and CSA Class I Div 2. It is used in applications such as combustion control, furnace and boiler optimization, process safety and emission monitoring.

LaserGas II SP features

  • Single-pass in-situ measurement: no sample line, pump or filter required
  • Optical path length selectable between 0.5 and 20 m
  • Response time 1–2 seconds, linearity below 1%
  • 4–20 mA, RS-232 and relay outputs; optional Ethernet and Modbus-TCP/IP
  • IP66 housing, Class 1 (IEC 60825-1) eye-safe laser
  • Maintenance interval 6–12 months; annual calibration recommended
  • Verification option with integrated or external span check cell

Spare parts and consumables

Write to us for spare parts and consumables; the Tetra service team supplies and replaces the right original parts for your instrument.

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Products from Neo Monitors

NEO Monitors NEO Monitors LaserGas II HF, HCl, NH3 and HCN Laser Analyzers Monitor HF, HCl, NH3 and HCN gases by in-situ laser measurement with LaserGas II; for cement, waste incineration and chemical plants, from Tetra in Türkiye. View → NEO Monitors NEO Monitors LaserGas II MP Cabinet Laser Gas Analyzer LaserGas II MP, with its multi-pass optical cell and cabinet, measures O2, CO, CO2, CH4 and NH3 at ppm level. Sold and serviced in Türkiye by Tetra. View → NEO Monitors NEO Monitors LaserGas iQ2 O2, CO, CH4, H2O Laser Analyzer LaserGas iQ2 is an ATEX-approved TDLAS analyzer that simultaneously measures O2, CO, CH4 and H2O in process gas up to 1300 °C; from Tetra in Türkiye. View → NEO Monitors NEO Monitors LaserGas Q NO and NO2 Laser Analyzer LaserGas Q monitors NO and NO2 gases by in-situ laser measurement, for emission and process applications; from Tetra in Türkiye. View → NEO Monitors NEO Monitors LaserGas II SP Compact Laser Gas Analyzer LaserGas II SP Compact is a compact TDLAS analyzer measuring O2, CO and CO2 for small-diameter ducts and short optical paths; sold and serviced by Tetra. View → NEO Monitors NEO Monitors LaserGas III Ultra Laser CO / CH4 Analyzer LaserGas III Ultra is an in-situ TDLAS analyzer designed for long optical paths and high concentrations, measuring CO and CO+CH4; offered in Türkiye by Tetra. View →
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