A data logger's sensors sample physical
information from the environment (e.g. temperature or humidity
levels) at set logging intervals. The sensors can be mounted inside
the data logger itself or external probes can be used for
hard-to-reach or extreme temperature areas.
The analogue signals produced by the sensors are converted to
digital ones which the microprocessor stores in the data logger's
internal memory. Tinytag data loggers have large,
non-volatile internal memory, so data can be stored long-term and
will be saved even if the device is powered off.
The digital data is then offloaded from the data logger using
specialised computer software.
If the logger has
USB connectivity, the data will remain stored
on the logger until offloaded manually onto a computer via a USB
LAN (Ethernet) connectivity automatically transmit
data to a computer. Radio loggers send information to a receiver,
which then sends the data to the computer running the system. LAN
loggers are directly connected to the network via an ethernet