The TR-76Ui-H data logger is a three-channel recorder designed to measure and record CO2 concentration, temperature and humidity. It achieves a temperature measurement accuracy of ±0.3°C between 10° and 40°C, and ±0.5°C at other temperatures. Automatic atmospheric pressure adjustment for the measurement location ensures stable CO2 measurements. It can store up to 8,000 data sets and is supplied with software that enables the user to view data from all three channels in a graph or table.