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Feature
Audible alarm , Easy to calibrate
he large illuminated display presents the 2 values simultaneously. Built-in data output (RS232) makes it simple to log data for longer time. Audible alarm is included . MaxMin Average as well as TWA and STEL measurements are also available. The carbon dioxide sensors gold-plated infra-redwaveguide and diffusion membrane filter provides you great reliability, accuracy and long term stability.