GTH001 Large Display CO2, Temperature & Humidity Logger. Provides very visible monitoring of Carbon Dioxide levels, Temperature & Humidity in building ventilation systems such as in factories, laboratories and more.
EA80 - Indoor Air Quality Meter/Datalogger. Measures C02, Temperature, Humidity, Dew Point and Wet Bulb
and automatically datalogs up to 20,000 sets or manually store/recall up to 99 sets. The EA80 checks for Carbon Dioxide concentrations using a maintenance-free dual wave NDIR (non-dispersive infrared) CO2 sensor with a range of 0 to 6,000 PPM.