Tunable diode laser spectroscopy (TDLS) is ideal for a selective measurement of some gas components such as NH3, HCl, HF or even O2, especially when conditions are too rough for standard O2 Zirconia In-Situ analyzers.

• Highly sensitive and selective measurement
• No measurement drift
• Response time 1 s
• Large dynamic range from ppm to %
• No sampling system needed
• Interference free gas measurements
• Low maintenance and cost of ownership