This product has been discontinued. Please refer to our Discontinued Products for information or check out the new PI2124 replacement analyzer. 

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The Picarro G2307 gas concentration analyzer provides precise, real-time measurement of formaldehyde (H₂CO), methane (CH₄), and water (H₂O) vapor. It incorporates coated components in the critical gas pathway. This reduces the propensity of H₂CO molecules…

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The Picarro G2508 gas concentration analyzer provides simultaneous, precise measurement of nitrous oxide (N₂O), methane (CH₄), carbon dioxide (CO₂), ammonia (NH₃) at parts-per-billion (ppb), and water (H₂O) vapor at parts-per-million (ppm)…

The Picarro G2509 gas concentration analyzer is designed for use in livestock farming, manure processing, and fertilizer studies. In these challenging environments, high ambient methane concentrations and rapidly evolving ammonia dynamics can make it difficult to get precise measurements of ammonia and greenhouse gases. The G2509 provides real-time, at-scale measurements of nitrous…

The Picarro G2401 gas concentration analyzer provides simultaneous, precise measurement of carbon monoxide (CO), carbon dioxide (CO₂), methane (CH₄) at parts-per-billion (ppb), and water (H₂O) vapor at parts-per-million (ppm) sensitivity with negligible drift for atmospheric science, air quality, and emissions quantification. It meets the World…

Nitrous oxide (N2O) is a powerful greenhouse gas that also affects the ozone layer. To better understand how N2O is produced and consumed in soils, oceans, the atmosphere, and wastewater, scientists measure its isotopes—slightly different forms of the same molecule that reveal its sources and transformation processes. Until now, making these measurements has often been complex and slow.…

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The Picarro G2204 gas concentration analyzer provides simultaneous, precise measurement of methane (CH₄) and hydrogen sulfide (H₂S) at parts-per-billion (ppb) sensitivity with negligible drift for emissions measurements from landfills, refineries, paper mills, or industrial…

The A0702 closed system measurement package recirculates samples through the analyzer cavity in a closed loop with minimum leakage. This makes it ideal for monitoring gas evolution from soils or vegetation or the incorporation of stable isotope labels into living organisms. This manual includes an overview, safety, packing materials, installation, instrument and pump leak test, and…

The Combustion Module (A0201), designed for Picarro by Costech Analytical (NC Technologies), combusts solid and liquid samples with carbon contents as low as 250 µg. When paired with a Picarro isotopic analyzer (e.g. G2131-i), the Picarro Combustion Module CM-CRDS (A0201) system analyzes the carbon isotopic (δ¹³C) composition of samples in applications such as food authenticity…

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The Picarro PI5310 gas concentration analyzer is designed for high-precision measurements of nitrous oxide (N₂O) and carbon monoxide (CO). Precisely measuring these naturally occurring greenhouse gases (GHGs) is critical to understanding the nitrogen cycle and in atmospheric studies…

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The Picarro Small Sample Introduction Module 2 (A0314), or SSIM2, transforms all Picarro continuously-sampling analyzers into instruments capable of measuring small, discrete gas samples. The SSIM2 is an excellent solution for soil, headspace, plant, and other studies that provide gas samples in limited volumes…

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The Picarro L2140-i isotopic water analyzer enables simultaneous measurements of δ¹⁸O, δ¹⁷O, and δ²H in solids, liquids and vapor. In addition, the analyzer determines ¹⁷O-excess to sub 15 per meg (<0.015‰). Measurements of ^…

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The Picarro G2131-i isotope and gas concentration analyzer enables measurement flexibility for a wide variety of applications—from atmospheric and ocean science research to food and beverage origin and authenticity. It can measure δ¹³C in carbon dioxide at less than 0.1…

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The Picarro G2201-i isotope analyzer combines capabilities of two Picarro δ¹³C carbon isotope instruments for CO₂ and CH₄ into a single instrument. Now it’s easy and fast to capture the insights that only stable isotope ratios offer.…

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The Picarro L2130-i isotope analyzer provides high quality measurements of water stable isotopes for demanding applications such as paleoclimatology, hydrology, and oceanography. δ¹⁸O and δ²H high-precision measurements can be made with water samples from…

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Whether you are looking at gas evolution from soils or vegetation, or the incorporation of stable labels into living organisms, our rugged, high-precision analyzers offer unparalleled performance. Picarro’s (A0702) small cavity design technology has long been the optimal choice for sample-limited studies. Now we have…

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The Picarro Autosampler (A0340) and Vaporizer (A0211) offer exceptional precision with minimal maintenance for ocean science, hydrology, and paleoclimatology applications. The Autosampler and Vaporizer fully integrate with the L2130-i and L2140-i water isotope analyzers, including onboard…

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The Picarro 16-Port Sequencer dramatically enhances the flexibility of Picarro gas analyzers by expanding the sampling capabilities of a single analyzer. 

The A0311-S multipoint sampler has been designed to optimize response time in the presence of reactive gases. It uses SilcoNert coated components and an…

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The Caddy™ Continuous Flow Interface (A2100) connects commercially available solid and liquid bulk sample preparation instruments—including the Picarro Combustion Module—to Picarro analyzers for high-precision carbon isotope (¹³C) measurements. 

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The Picarro PI5131-i isotopic and gas concentration analyzer enables simultaneous measurements of site-specific and bulk δ¹⁵N and δ¹⁸O in nitrous oxide (N₂O). It is an ideal solution for discerning and measuring the source of N₂O emissions through grab-sample measurements in the lab. The isotopomers of N₂O can be used to…

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The Picarro G2401-m gas concentration analyzer provides simultaneous, precise measurement of carbon monoxide (CO), carbon dioxide (CO₂), methane (CH₄) at parts-per-billion (ppb), and water (H₂O) vapor at parts-per-million (ppm) sensitivity with negligible drift for…

Software enhancements strengthen compliance support with better traceability, audit readiness, and operational efficiency

Santa Clara, CA, March 18, 2026 — Picarro Inc., a global leader in high-precision gas concentration analytical solutions, today announced the launch of the …

We have consolidated our production efforts on our core and newer instruments. We have discontinued some models, but many have comparable or improved replacements listed below. If you don’t see a replacement for a specific model you are interested in, please fill out our contact form so we can help you find a suitable alternative. As you consider…

The Picarro PI2124 gas concentration analyzer measures hydrogen peroxide (H₂O₂) at levels as low as 3 ppb to help prevent oxidation and safeguard drug stability. Picarro hydrogen peroxide analyzers are widely used by major pharmaceutical companies, CMOs, and isolator manufacturers in high-potency API production, biologics manufacturing, and aseptic fill and finish environments.

The…

Picarro’s Fenceline Monitoring System (FMS) is a fixed, perimeter-based monitoring system designed to deliver continuous, high-sensitivity measurements of hazardous air pollutants at industrial facility boundaries. Built on proven Cavity Ring-Down Spectroscopy (CRDS) technology, the system provides accurate, defensible data that supports regulatory compliance under the HON, RSR, and CMAS…

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The Picarro G2301 gas concentration analyzer provides simultaneous, precise measurement of carbon dioxide (CO₂), methane (CH₄) at parts-per-billion (ppb) and water (H₂O) vapor at parts-per-million (ppm) sensitivity with negligible drift for atmospheric science, air…

Picarro CRDS analyzer for the gas concentration of the primary greenhouse gases in ambient air. This manual provides safety, contents, overview, installation, operation, log messages, GUI functions, file management, calibration, troubleshooting, maintenance, remote data access, data file viewer, and external valve sequencer information.

Jan Woźniak

Sr. Application Scientist at Picarro