СО2 Montior с USB Data Logger,

Gas detected Carbon Dioxide (CO2) Sensing element Non-Depressive Infrared Detector (NDIR) CO2 NDIR life 15 years Accuracy@25°C(77°F) ±40ppm + 3% of reading Stability <2% of FS over life of sensor (15 yr typical) Calibration interval ABC Logic Self Calibration Algorithm CO2 measuring range 0 2000ppm -default value Up to 0 20,000ppm, programmable selection CO2 setting & Display resolution 1ppm Pressure Dependence Can be preset the altitude by the end users to eliminate the pressure influence via a inside software Temperature& RH sensor (optional) Combined digital temperature and relative humidity sensor Temperature measurement range -20°C 60°C(-4°F 140°F) Humidity measurement range 0 100%RHTemperature& RH accuracy ±0.5°C / ±3%RH Option: 1X dry contact output Rated currency for contact point: 3A 220VAC/30VDC, resistance load Optional:1xanalog output0 10VDC output for CO2 measurement or PID control Operation condition -20°C 70°C, 0 95%RH (non-condensing)Power supply 24VAC/VDC ±10% wiring connection Or with a power adaptor of 24V/230V or 24V/110V Consumption 3.5W/ Max, 2.5W/ Average Weight 380g Dimensions 130mm×90mm×40mm Connections Interface Locate in interface of connection Installment standard 65mm×65mm or 2”×4” wire box Wiring standard Wire section area<1.5mm2 Approval Standard CE-Approval Presetting and operation Buttons and internal DIP switches Sampling alternation Preset the sampling alternation during 60s to 1h. The general maximum day of the data record is 60 days Software Features Outputs date is in .txt format USBDataGather software is for stand-alone application. It’s used to set parameters for different applications, to display the graph of capture data, to calculate the average value of a period, as well as the max. and min. value 1.Real-time monitoring carbon dioxide (CO2) measurements during 0ppm to 20,000ppm range2.Optional real-time monitoring temperature from -20°C to 60°C and relative humidity from 0 to 100%RH3.Non-dispersive infrared (NDIR) CO2 sensor with self calibration, 15 years lifetime 4.The 3-LED indicator lights indicate three CO2 measured ranges 5.LED lights brightness adjustable 6.Provide 1X0 10VDC output for alternative linear CO2 measurement and PID control output 7.Provide 1X On/Off dry contact output to control alternative a ventilator and a CO2 generator 8.An internal data logger is used to record CO2 measurements as well as optional temperature and RH% measurements. 9.With super large capability memorizer, it can save data of up to 115 days 10.Provide the software to preset the sampling time, read and record CO2/temperature&RH levels on PC 11.Post the data from the internal memorizer by any USB disk, and copy the data to a PC