AZ7753 : CO2 Detector

	Low cost portable meter checking indoor air quality
	Big dual display lcd with 2 parameters Simultaneously: CO2 ,Temperature
	Design with ndir (non-dispersive infrared) Wave guide technology sensor
	Manual calibration is recommended
	Warning carbon dioxide level
	Backlight function for working in dark
	Longtime drift compensation
	Audible alarm (-80db) threshold setting

Description

	Max ,min, average functions included
	RS232 output every 2 seconds to pc for analysis
	Hold function freezes current readings
	Display 8 hrs twa value (time-weighted average) Or 15 minutes stel value (short-term exposure limit)
	Housing designed surrounds with rails to help Air ventilation for quick and accurate response
	Easy to calibrate at fresh air around 380-420ppm