Lutron CO2-9914SD CO2 Meter + Humidity/Temp., SD Card (One Probe)

\none probe, SD card real time reorder\nCO2 METER, + Humidity/Temp.\nModel : CO2-9914SD\n* One probe include the CO2, Humidity, Temp. function, easy operation.\n* Real time recorder, save the data into the SD memory card and can be downloaded to the Excel, extra software is no need.\n* One probe include the measurement : CO2 (Carbon dioxide ), Humidity, Dew point, temperature.\n* CO2 range : 0 to 12,000 ppm x 1 ppm.\n* Humidity range : 5 to 95 %RH.\n* Dew point : -25.3 to 48.9 °C, °C/°F.\n* Temp. range : 0 to 50.0 °C, °C/°F.\n* CO2 sensor : NDIR, long term reliability.\n* Humidity sensor : Precision capacitance sensor.\n* Alarm setting with the beeper sound output.\n* Sampling time for data recorder is 2 seconds to 8 hours.\n* Hard carrying case is included\n* Can use 2 GB to 16 GB SD card ( optional ).\n* RS232/USB computer interface.\n* Patented.\n