As supplied, the Tinytag CO2 data logger comes with a mains
Tinytag CO2 data loggers require an +18V/500mA DC supply and
have an average current draw of 13mA.
The data logger's CO2 sensor must be powered as described above
in order to work and for the data logger to read correctly.
The back-up battery that is fitted in the CO2 data logger
ensures that the data logger continues to record in the event of an
interruption to the unit's power supply. The back-up battery does
not power the CO2 sensor. With no power to the unit's CO2 sensor, a
Tinytag CO2 data logger will read 0ppm.
For more information, please consult the relevant data sheet for
your Tinytag CO2 data logger:
CO2 - TGE-0010 Data Sheet
CO2 - TGE-0011 Data sheet