Extech CO2, Humidity, Temperature Datalogger, Extech Instruments (CAT#: STEM-AIAE-0035-LKN)

Extech CO2, Humidity, Temperature Datalogger stores readings on an SD card in Excel format for easy transfer to a PC. Selectable data sampling rate: 5, 10, 30, 60, 120, 300, 600 seconds or Auto. Complete with six AAA batteries, 2G SD memory card, universal AC adaptor, and mounting bracket.

Humidity measuring range: 10-90 %RH
Measuring range: 0-4000 ppm (CO2)
Temperature measuring range: 0-50 °C
Size: 5.2 in. (132 mm) × 3.1 in. (80 mm) × 1.3 in. (32 mm)
Weight: 9.9 oz (282 g)
Battery power: 6 AAA

Checks for Carbon Dioxide (CO2) concentrations.
Maintenance free dual wavelength NDIR (non-dispersive infrared) CO2 sensor.
Triple LCD simultaneously displays CO2, Temperature and Relative Humidity.

Extech 4 - 1 Environmental Meter, Extech Instruments (CAT#: STEM-AIAE-0034-LKN)
Extech Desktop Indoor Air Quality Carbon Dioxide (CO2), Temp, Humidity Monitor, Datalogger, Extech Instruments (CAT#: STEM-AIAE-0036-LKN)
Extech Desktop Indoor Air Quality Carbon Dioxide (CO2), Temp, Humidity Monitor, Extech Instruments (CAT#: STEM-AIAE-0037-LKN)