Mocon - Minneapolis, MN
Manufacturer, Custom Manufacturer, Service Company
Custom manufacturer of photoionization sensors used for detecting carbon dioxide. Specifications of sensors include 20 ppm to 2,000 ppm measuring range, 5 ppm to 50 ppm minimum detectable quantity, 10.6 eV lamp energy, response time up to 20 seconds, minus 20 degrees C to plus 60 degrees C temperature range, 0 to 90 percent relative humidity, 3.2 V to 10 V supply voltage, 0.005 V to 2.5 V output signal, 20 mA to 30 mA current supply & humidity quenching effect up to 15 percent.
Brand Names: Mocon
www.mocon.com/leakdetection.php

Honeywell Sensing and Control - Golden Valley, MN
Manufacturer, Custom Manufacturer
Six Sigma capable & AS 9100, ISO 14001, ISO 9001, TS 16949, & QS 9000 certified manufacturer of air flow sensors & carbon dioxide sensors. Mass airflow sensors contain a thin-film, thermally isolated bridge structure that contains both heater & temperature sensing elements. Bridge structure provides a response to changes in airflow or other gasses over the chip. Applications include air pollution instrumentation, HVAC damper control, gas analyzers, medical equipment, & process control.