Our SA-4 portable small animal field-portable respirometry system produces accurate, reproducible data from animals from small reptiles and amphibians up through large rats in size, anywhere - in the lab, or in the field. It can be used in push, pull or stop-flow mode. In stop flow mode the systems' measurement range can easily be extended to small insects. Contained in a sealable, rugged box that is dust- and water-proof, the SA-4 portable small animal portable respirometry system can be used anywhere. It is available with an optional water vapor pressure analyzer for flow and dilution compensation without requiring scrubber chemicals. 

The SA-4 portable small animal field-portable respirometry system is normally supplied with an integrated oxygen and carbon dioxide analyzer, and measures oxygen consumption rate, CO2 production rate, RQ, and water loss rate. Using RQ, the respiratory substrate of the test animal can be determined, allowing accurate translation of gas exchange measurements to energy equivalents, e.g. Watts, Joules/hr or calories/day.

Data acquisition is fully automatic, using our acclaimed ExpeData™ software, the product of over twenty years' experience in computerized data acquisition and analysis. Complete user control over every aspect of the system's operation is supported. Baselining can optionally be fully automated, though in field situations the system is usually manually baselined or it may be self-baselining (e.g. an animal entering and leaving a habitat or feeder voluntarily). The analysis of acquired data is uniquely flexible and can also be fully automated, if desired. The respirometry equations used in the system are state-of-the-art.

All necessary tubing and accessories are supplied with the system. Lifetime technical support by published experts in respirometry is included. 

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