This single channel non-dispersive infrared CO2 analyzer's 0 to 2000 ppm range and 1 ppm resolution make it ideal for CO2 exchange measurements with leaves, insects, small animals or organisms with a low metabolic rate. It is also excellent for measuring soil respiratory activity in the lab and field. The analyzer may be used in a flow-through gas exchange configuration for instantaneous and continuous measurements of CO2 exchange. It can also be used in stop flow or closed system modes for measurements at extremely low activity levels. The S157 may also be used as part of Qubit Systems' carbon dioxide control system for regulating pCO2 in growth cabinet.

Features include:

Switchable ranges of 0 - 500 ppm and 0 - 2000 ppm CO2

1 ppm carbon dioxide resolution on digital display

Non-dispersive infrared technology

Modulated infrared light source = no moving parts

0 - 5 V analog output at both range settings

Optional battery pack for field use

Compact and portable

Weatherproof case

Applications include:

Photosynthetic measurements

Respiration of roots and soil samples

Respirometry of insects and other invertebrates

Head space analysis of cell cultures

Atmospheric monitoring and control

Respiration of small amphibians