This product has been discontinued. Please refer to our Discontinued Products for information on replacement analyzers.

The Picarro G2207-i gas concentration and isotope analyzer combines high precision and low drift O₂ concentration measurement with δ¹⁸O analysis in ambient air. This makes it ideal for challenging applications including atmospheric oxygen monitoring to identify the biogeochemical process involved in the carbon cycle.

• Measures atmospheric O₂ gas concentration and δ¹⁸O
• Two measurement modes: O₂ concentration only and δ¹⁸O plus O₂ concentration
• <2 parts-per-million (ppm) precision in O₂ concentration mode
• Maximum drift is 6 ppm peak-to-peak at standard temperature and pressure
• Includes water measurement and correction

The G2207-i incorporates two measurement modes: O₂ concentration only and δ¹⁸O plus O₂ concentration. O₂ only mode provides the highest performance of the ambient concentration: <2 parts-per-million (ppm) at a 5-minute average. Maximum drift is <6 ppm peak-to-peak (P-P) at standard temperature and pressure (STP) over 24 hours. The analyzer also measures water vapor concentration to compensate and correct for dilution. It reports O₂ concentration in dry-mole fraction. Patented Picarro cavity ring-down spectroscopy (CRDS) technology enables an effective measurement path length of up to 20 kilometers in a compact cavity, which results in exceptional precision and sensitivity with a small-footprint analyzer. A meticulously designed small optical cavity incorporates precise temperature and pressure control. As a result, the analyzer delivers a best-in-class combination of precision, accuracy, low drift and ease-of-use.