Features:

• Simultaneously measures multiple parameters such as: CO, CO2, Temperature, RH, to monitor IAQ
• Calculates Dew Point, Web Bulb Temperature, Absolute Humidity, Humidity Ratio and % Outside Air
• Simplifies the labor involved and eliminates the need to purchase and learn multiple instruments
• Easy user self-calibration
• The monitor can also check CO₂ levels and determine the rate of exchange, or the % of outside air, being introduced to a building per ASHRAE standard 62
• Examines building IAQ conditions to optimize worker productivity
• NIST Traceable Calibration Certificate*
• Features quick start-up and high accuracy in measuring CO₂ and CO concentration levels in the environment
• Sampling function records multiple point measurements

Measurement Specifications
CO	Range	0 to 500PPM
	Accuracy	+/-3% of reading or +/-3PPM whichever is greater
	Resolution	0.1PPM: 0-99PPM 1PPM: 100-500 PPM
CO2	Range	0 to 5000PPM
	Accuracy	+/-3% of reading or+/-50PPM whichever is greater
	Resolution	1PPM
Temperature	Range	– 4 to 140F (-20 to 60C)
	Accuracy	+/- 1F (+/-0.5C)
	Resolution	0.1F (0.1C )
Relative Humidity	Range	2 to 98%RH
	Accuracy	2 to 80%RH: ±2%RH, 80 to 98%RH: ±3%RH
	Resolution	0.1%RH
General Specifications
Function	Normal Mode	Normal measuring (do not store and calculate the data.) relative humidity, CO, CO2, dew point, wet bulb temperature, absolute humidity and humidity ratio
	Calculation Mode	Store the data, and calculate the maximum, minimum and average value.
	% OA Mode	Measure ventilation ratio (ask for ventilation ratio by calculating from temperature and CO2 value)
	Data Output Mode	Perform re-calculation of stored data and output of data to PC and Printer.
	Calibration Mode	Perform the calibration of CO and CO2.
Output	Digital	RS232C
	Analog (optional)	DC 0 to 1V
Power Supply	Standard	6x AA Batteries
	Analog (optional)	DC 0 to 1V
Dimensions	Unit	3.4″ x 7.4″ x 1.6″
	Probe	Length: 12.5 inch / Diameter: 1.0 inch
Weight	1.2lbs (500g)