With its 24-hour battery life, ease of use and large LCD display, the pSense Portable CO2 Meter is the low-cost solution to measure carbon dioxide. Use it as a CO2, temperature and %RH tester for IAQ. Use the CO2 alarm as a personal safety monitor. Or plug it into a laptop for an inexpensive data logger.
www.CO2Meter.com, (877) 678-4259.