Extech CO-200 Indoor Air Quality CO2 Monitor

Extech CO.200 Desktop Indoor Air Quality CO2 Monitor
Measures Carbon Dioxide ( CO2) , Air Temperature and Humidity

Features: 

Checks for Carbon Dioxide ( CO2) concentrations with Max/ Min value recall function
Maintenance free NDIR ( non-dispersive infrared) CO2 sensor
Indoor Air Quality displayed in ppm with Good ( 380 to 420ppm) , Normal ( 1000ppm) indication
Visible and Audible CO2 warning alarm with relay output for ventilation control
Measurement ranges: 
CO2: 0 to 9, 999ppm
Temperature: 14 to 140° F ( -10 to 60° C) 
Humidity: 0.1 to 99.9% RH
Displays Year, Month, Date, and Time
Automatic Baseline Calibration ( minimum CO2 level over 7.5 days) or manual calibration in fresh air

Applications : 

Monitor air quality in schools, office buildings, greenhouses, factories, hotels, hospitals and anywhere that high levels of carbon dioxide are generated

Specifications : 
Carbon Dioxide : 0 to 9, 999ppm
Resolution : 1ppm
Temperature : 14 to 140° F ( -10 to 60° C) 
Resolution : 0.1° F/ ° C
Humidity : 0.1 to 99.9% 
Resolution : 0.1% 
Dimensions : 4.6 x 4 x4 " ( 117 x 102 x 102mm) 
Weight : 7.2oz ( 204g) 

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