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Researcher, University of Bristol

Our lab was interested in purchasing a syringe pump from WPI. The company's support was helpful in identifying the required model and even informed us of model-specific limitations (which were of no concern for our intended use). The overall processing and delivery was exceedingly fast – less tha...
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CO2 Analyzer, complete with accessory kit

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CAPSTAR-100 DataSheet
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The CapStar-100 Carbon Dioxide Analyzer provides continuous measurement of expired CO2 over the range 0-10 percent. Its rapid response time, small sample flow requirements, and long-term stability make it ideal for respiratory gas measurement of rodents and larger animals.

The heart of the instrument is a miniature infrared analyzer with exceptional stability, low maintenance, and a linear output. The heated measurement cell prevents water condensation. The SensorPod, which contains the infrared measurement cell, attaches to the front panel by a 1.5m cable. This cell can be removed for cleaning, inspection, or replacement in minutes. The digital display shows CO2 concentration in percent or mmHg, and allows breath-by-breath peak end-tidal reading or continuous rapid response. Calibration is performed with a single calibrated gas and room air.

The reliability and ease of operation of the CapStar-100 make it the perfect instrument for routine respiratory CO2 monitoring. It is the natural companion to our SAR-830 series Small Animal Ventilators for monitoring respiratory status. With the AVS-1 Advanced Ventilator System, it can control end-tidal CO2. It can also be used to monitor unassisted animals. Gas sampling rates of less than 30ml/min can be used, making it possible to monitor animals as small as rats. The fast response time of the CapStar-100 allows end-tidal response plateaus with respiratory rates of 100 breaths/min.

A range of accessories is available to ensure easy setup and convenient operation. An accessory pack containing sample tubing, moisture traps, and Nafion® moisture-absorbing sample tubes is included with the instrument.




Ayala, Y., & Malmierca, M. (2015). Cholinergic modulation of stimulus-specific adaptation in the inferior colliculus. The Journal of Neuroscience. Retrieved from

Bhandare, A. (2015). Antagonism of PACAP or Microglia Function Worsens the Cardiovascular Consequences of Kainic-Acid-Induced Seizures in Rats. The Journal of  …. Retrieved from

Boorman, L., & Harris, S. (2015). Long-latency reductions in gamma power predict hemodynamic changes that underlie the negative BOLD signal. The Journal of  …. Retrieved from

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Fan, A., Evans, K., & Stout, J. (2015). Regional quantification of cerebral venous oxygenation from MRI susceptibility during hypercapnia. Neuroimage. Retrieved from

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Gagnon, L., & Sakadžic, S. (2015). Quantifying the microvascular origin of BOLD-fMRI from first principles with two-photon microscopy and an oxygen-sensitive nanoprobe. The Journal of  …. Retrieved from

González-Hernández, A. (2015). Intracisternal injection of palmitoylethanolamide inhibits the peripheral nociceptive evoked responses of dorsal horn wide dynamic range neurons. Journal of Neural  …. Retrieved from

Hassan, S., Zumut, S., & Burke, P. (2015). Comparison of noradrenaline, dopamine and serotonin in mediating the tachycardic and thermogenic effects of methamphetamine in the ventral medial prefrontal. Neuroscience. Retrieved from

Hoffmann, J., & Supronsinchai, W. (2015). Evidence for orexinergic mechanisms in migraine. Neurobiology of  …. Retrieved from

Hung, C., Wang, J., & Strichartz, G. (2015). Spontaneous Chronic Pain After Experimental Thoracotomy Revealed by Conditioned Place Preference: Morphine Differentiates Tactile Evoked Pain From. The Journal of Pain. Retrieved from

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Salman, I., & Kandukuri, D. (2015). Direct conscious telemetry recordings demonstrate increased renal sympathetic nerve activity in rats with chronic kidney disease. Frontiers in  …. Retrieved from

Sugiyama, Y., & Shiba, K. (2015). Role of the retrotrapezoid nucleus/parafacial respiratory group in coughing and swallowing in guinea pigs. Journal of  …. Retrieved from

Wiesner, H., & Balla, D. (2015). 17O relaxation times in the rat brain at 16.4 tesla. Magnetic Resonance  …. Retrieved from

Yang, Y., Li, H., Li, T., Luo, H., & Gu, X. (2015). Delayed Activation of Spinal Microglia Contributes to the Maintenance of Bone Cancer Pain in Female Wistar Rats via P2X7 Receptor and IL-18. The Journal of  …. Retrieved from

Zhou, J., Yuan, F., Zhang, Y., & Li, D. (2015). Upregulation of orexin receptor in paraventricular nucleus promotes sympathetic outflow in obese Zucker rats. Neuropharmacology. Retrieved from




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