EXTECH CO200

Extech CO200 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)