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LaserTrace 2.5 H2O

Categories: Gas Monitors, Process, Specialised Products,

Delivering your best measurement

Detect gas quality upsets before they can damage your processes. Using Tiger Optics’ LaserTrace 2.5 H2O analyzer, you can verify moisture impurity levels with part-per-trillion accuracy, drift-free stability, and virtually immediate response. You’ll find our system exceptionally easy and fast to install, and effortless to maintain, with built-in zero verification. It measures in bulk gases, specialty gases, and gas mixtures. And its robust design—free of moving parts—results in an analyzer that has a high Mean Time Between Failure (MTBF) rate and a very low Cost of Ownership (CoO).

Designed for trace level contamination analysis, the LaserTrace 2.5 H2O offers:

  • Industry-leading parts-per-trillion detection capability
  • Unprecedented speed of response
  • Widest available dynamic range
  • Absolute measurement (freedom from calibration gases)
  • Flexibility: up to four (4) measurement points per electronics module
  • Extremely low cost of ownership
  • Electronics module compatible with existing LaserTrace sensor modules


  • Gas Quality Control
  • Gaseous CRMs & Calibration Gas Mixtures
  • High-Purity Gases & Systems
  • Research & Development


Laboratory & Scientific

Stack, Process & CEMS

Detection Capability

Detection and Matrix Range LDL Sensitivity
H2O in N2 0 – 5 ppm 500 ppt 400 ppt
H2O in He 0 – 1 ppm 200 ppt 100 ppt
H2O in Ar 0 – 2 ppm 220 ppt 180 ppt
H2O in H2 0 – 4 ppm 400 ppt 300 ppt
H2O in O2 0 – 2.5 ppm 250 ppt 200 ppt
H2O in CO2 0 – 10 ppm 1000 ppt 800 ppt


Operating range See Detection Capability table
Detection limit (LDL, 24 h peak-to-peak) See Detection Capability table
Sensitivity (3σ) See Detection Capability table
Precision (1σ, greater of) ± 0.75% or 1/3 of Sensitivity
Accuracy (greater of) ± 4% or 1/2 of 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 (optional corrosion-resistant material), 10 Ra surface finish
Gas connections 1/4” male VCR inlet and outlet
Leak tested to 1 x 10-9 mbar l / sec
Sample inlet pressure 10 − 125 psig (1.7 − 9.6 bara)
Flow rate 0.5 – 1.8 slpm (gas dependent)
Sample gases Most inert, toxic, passive and corrosive matrices
Gas temperature Up to 60°C
Dimensions, H x W x D
Electronics unit 14″ x 19″ x 14″ (356 mm x 483 mm x 356 mm)
H2O sensor 7″ x 4.75″ x 27″ (178 mm x 121 mm x 686 mm)
Sensor rack
(fits 4 H2O sensors or 1 H2O and 1 O2 sensor)
8.75″ x 19″ x 27″ (222 mm x 483 mm x 686 mm)
Electronics unit 32 lbs (14.5 kg)
H2O sensor 38 lbs (17.2 kg)
Alarm indicators User programmable setpoints (1 per sensor), Form C relays
Power requirements 90 − 240 VAC, 50/60 Hz
Power consumption 200 Watts max.
Signal output Isolated 4−20 mA per sensor
User interfaces 10.4” LCD touchscreen, PS/2 for mouse and keyboard
10/100 Base-T Ethernet, 2 USB ports, RS-232
U.S. Patent # 7,277,177
Bronwyn Straccione

Bronwyn Straccione

Category Manager - CEMS and Gasmet

Hi there, I'm Bronwyn. I've been with TES for 15 years and I'm the Category Manager for our Gasmet and CEMS equipment sales. My usual work days are Monday - Wednesday. If there's something I can help you with, please give me a call on 0404 161 353 or send me a message and myself or your local sales support will be in touch shortly!

Get in touch for more information...