Image
Attached is a screenshot of a HOBO U12-012 Temp/RH/Light/External Input data file with the Telaire 7001 CO2 sensor connected to the external input.
Attached is a screenshot from HOBOware software that depicts a data file recorded by a HOBO U12-012 Temp/RH/Light/External Input Logger.
In the HOBOware and HOBOmobile Launch screens there is a number that is presented as "Logging Duration" (see attached screen shot)
Attached is a wiring diagram that shows how to monitor switch closures with a HOBO UX12