In choosing the correct data logger, various factors need to be
taken into consideration. It is essential that loggers will record
accurately and reliably, possibly over a prolonged period of time
if they are located in remote areas: for
wildlife research, this is also an important factor in order to
minimise intrusion into the natural habitat. This will require a
long battery life and a high recording capacity. Loggers will need
to be robust as they may well be exposed to harsh environmental and
weather conditions, and for water-based research, they may need to
be fully submersible. Ideally loggers should have a magnetic
trigger and/or delayed start option so they can be started anywhere
at a pre-set time without the need for a PC.
Loggers in the Tinytag range meet these criteria and are
suitable for monitoring in the harshest conditions. Tinytags are
used for many environmental research applications, ranging from
individual loggers recording locally to multiple devices used for
Temperature and relative humidity data loggers
Tinytag Plus 2
temperature/relative humidity loggers are a popular choice: their
robust, waterproof design, plus their reliability, long battery
life and high memory capacity means they can be deployed for
long-term data collection in exposed conditions in remote areas.
Plus 2 data loggers are used for a variety of environmental
research projects worldwide including weather observation,
glacial research in the Himalayas, researching marine turtles'
nests, and restoration of UK grasslands.
A robust design may not just be the need to be weatherproof,
data loggers may need to be strong enough to counter the attention
of the local wildlife! Tinytag Plus 2 loggers recording
temperatures to aid planting decisions at
Bedgebury National Pinetum have repeatedly withstood the
onslaught of the local rabbit population who enjoy using them for
sharpening their teeth!
For some applications it may be an advantage to have a data
logger with a display showing current readings, as well as
Tinytag View 2 temp/RH data loggers have an LCD display and
have been used, for example, in
investigating conditions in honeybee hives as part of conservation
research. Like the Plus 2 range, View 2 loggers are available
with accompanying probes for monitoring hard to reach areas.
The Tinytag Aquatic 2 submersible data
logger is specifically designed for underwater applications. It
is used for
temperature monitoring in rivers, lakes and oceans, typically
to record the effects of weather and climate change, and also in
fish farms. It can be submerged at depths up to 500 metres for long
periods, and its robust, high visibility bright yellow case has an
attachment point allowing it to be securely positioned. For
example, Aquatic loggers have been deployed 200km north of the
Arctic Circle in a glacial river basin as part of research into
When downloading loggers in harsh or wet environments, it is
helpful to avoid exposing connections. Data from the Aquatic 2 is
offloaded very quickly and easily using the inductive pad. The
logger is simply placed on the pad, which plugs into the PC with a
USB cable, removing the need to directly connect a cable to each
logger. As well as avoiding exposing connections, this speeds up
the configuration and offloading of multiple loggers.
Count data loggers
Count data loggers are used in
outdoor research, typically for investigating climate and
environmental change. Tinytag Plus Re-Ed count input loggers can be
connected to a variety of sensors to make specialist data loggers
for a wide range of applications. Re-Ed loggers are either supplied
uncased (OEM) for building into custom applications, or as a
standard data logger in a robust, waterproof case.
For example, Re-Ed count loggers have been used for
studying sediment movement in rivers,
investigating the development of stalagmites, and for
high resolution rainfall monitoring.