The Delta OHM HD37AB1347 simultaneously measures the following parameters, using the P37AB147 SICRAM probe: CO2 Carbon Dioxide, CO Carbon Monoxide, Temperature, Relative Humidity, it calculates Dew Point, Wet Bulb Temperature, Absolute Humidity, Mixing Ratio, Enthalpy and Atmospheric Pressure. The P37B147 SICRAM probe does not measure CO Carbon Monoxide. You can also connect Temperature and Humidity SICRAM combined probes, Hot-Wire Sensor Wind Speed SICRAM probes, Vane Wind Speed SICRAM probes, and Temperature SICRAM probes with Pt100 sensor, to the instrument.
The instrument, using a proper procedure, calculates the percentage of external air input (% Outside Air) according to CO2 Carbon Dioxide, temperature, and Ventilation Rate. The HD37AB1347 is a datalogger with a memory capacity of 67600 recordings per each of the two inputs, divided in 64 blocks. It uses the DeltaLog10 software, version 0.1.5.0. Reference Standards: ASHRAE 62.1,