This Portable Indoor Air Quality CO 2 Meter measures Carbon Dioxide (C0 2), Temperature, Humidity, Dew Point, and Wet Bulb.Checks for Carbon Dioxide (CO 2) concentrations and calculates statistical weighted averages of TWA (8 hour time weighted average) and STEL (15 minute short term exposure limit).User programmable audible alarm. EXTECH CO250 Portable Indoor Air Quality CO2 Meter measures Carbon Dioxide (CO2), Temperature, Humidity, Dew Point, and Wet Bulb. Co2 meter (9 pages) Measuring Instruments Extech Instruments CO230 User Manual. 1. Place the meter in the 400ppm calibration chamber. Sound level alert (8 pages) Summary of Contents for Extech Instruments HD400. The output is 9V, 0.5A and the plug size is dia 3.5mm x 9mm(L). Measuring Instruments Extech Instruments CO250 User Manual. The CO240 measures Carbon Dioxide (CO2), Air Temperature and Humidity, as well as … However, this Extech CO250 does not come with a power supply for the 9VDC socket. Carbon monoxide meter (7 pages) CO250 V1.2 1/099MaintenanceCLEANING AND STORAGE1. This seems like a perfect compromise between budget and the Extech SD-800, because this one can log info if connected to a computer --ie. The meter should be cleaned with a damp cloth and mild detergent when necessary.Do not use solvents or abrasives.2. Related Manuals for Extech Instruments CO250 . The Extech CO260 monitors indoor air quality for Carbon Monoxide (CO) and Carbon Dioxide (CO₂) levels. the essential features of the SD-800 if a computer can be used nearby.. Extech CO240: Indoor Air Quality, Carbon Dioxide (CO 2) Measures Carbon Dioxide (CO 2). Some Extech CO250s do come with an external power unit. In high concentrations these gases can affect the health and well-being of people and pets. EXTECH CO250 | Meter: CO2, temperature and humidity; Interface: RS232 - This product is available in Transfer Multisort Elektronik. Data acquisition software and cable included to record and document CO2, Humidity and Temperature data. CAUTION: Do not calibrate the meter in an atmosphere of unknown CO 2 concentration. 6 CO250-EU V1.2 6/09 Calibration CO2 CALIBRATION The meter is calibrated to a standard 400ppm CO2 concentration at the factory NOTE: When the accuracy becomes a concern or after a year of use, return to Extech for a standard calibration. Gas leak detector. Measuring Instruments Extech Instruments CO52 User Manual 2 pages. ... CO250 PDF - Extended manual language en. We do not have a part number for the EXTECH CO250 power supply. This meter is shipped fully tested and calibrated and, with proper use, will provide years of reliable service. The Extech CO250 measures CO2 (Carbon Dioxide) levels, air temperature, dew point, wet bulb, and humidity and is an ideal instrument for indoor air quality (IAQ) diagnosis. Co2 meter (9 pages) Measuring Instruments Extech Instruments SL130 User Manual. 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