Throughout the cold chain, Tinytag data loggers are used to monitor food and pharmaceuticals. For one customer, stand-alone loggers have been used in temperature controlled transport, while radio data loggers have been used in cold stores, generating temperature alarm warnings if levels fall outside specified limits.
Leading refrigerated transport company Igloo Thermo-Logistics
uses both stand-alone and the Tinytag radio
data logging system to ensure food and pharmaceutical products
are stored and transported in perfect environmental conditions.
Chichester based Gemini Data Loggers first supplied Igloo
Thermo-Logistics with its small battery powered Tinytag loggers
some years ago. Since that time Igloo has employed over 40 of the
loggers to record temperature within refrigerated vehicles,
providing evidence that Igloo is conforming to the requirements of
the company's pharmaceutical and food industry customers.
Following the launch of Gemini's new radio-enabled logger
communication technology, Igloo incorporated a new system at its
facilities in both Watford and Leeds. The addition of radio to the
communication options has provided Igloo with a highly effective,
low cost monitoring and alarm system that automatically takes
real-time data from multiple points in the company's cold
Commenting on the benefits of the new equipment, Igloo Managing
Director Alistair Turner says, "We are now able to view live
temperature data from all of our cold rooms 24/7 from any computer
anywhere in the world. However, the system also enables us to set
alarms so that text and email alerts are issued to key staff if any
of the temperatures start to deviate from the norm. As a result, we
are able to deal with any problems before they occur."
The Tinytag Radio System consists of
a number of radio loggers connected wirelessly to a receiver. The
receiver is connected to a central PC running 'Tinytag Explorer
Radio' software that continuously collects and stores data from the
remote loggers. The radio loggers work together in what is known as
a 'mesh network,' in which all the devices work together to send
information to the central receiver. It allows for continuous
connections and automatic reconfiguration around broken or blocked
paths by 'hopping' data from node to node until the destination is
Each radio logger is a self-contained, battery powered unit that
can receive, log and transmit data to other radio loggers, and to
the central receiver. If one radio logger is out of range with the
receiver, its data hops to its nearest neighbour and hence finds a
path back to the receiver. If a radio logger loses connection with
all of its neighbouring radio loggers and is unable to find a path
back to the receiver, data is stored locally until communication is
"The mesh network capability effectively means that we have
found a way for radio to go around corners," says Gemini's Nigel
Palmer. "The radios have a 200 metre range and sensor cables can
extend up to 10 metres. This means that the radio loggers can be
mounted high above the sensor locations to maximise radio
The Tinytag radio loggers were first
installed by Igloo in late summer 2010 and Alistair Turner has been
delighted with the system. He says, "We initially chose Tinytags,
following a trial of other products, because they proved extremely
robust - able to withstand extremes of temperature and physical
abuse. We therefore leapt at the opportunity to try the radio
loggers because they offered a lower labour requirement with even
greater assurance for our temperature control systems."
"The simplicity of the new system meant that costs were very
low; we simply installed the software, connected the receiver and
mounted the radio loggers. Then, with the sensors in position, we
turned the radio loggers on and the system automatically created
the mesh network. Alarm levels were configured at the central PC
and since then, the system has effectively run itself."
Looking forward, Alistair Turner believes that significant
further growth opportunities exist in the pharmaceutical industry.
"Temperature control is vital for all of our clients," he says.
"However, pharmaceutical goods are often very high in value so
accurate, reliable monitoring is even more important in this
sector. The Tinytag system therefore provides our customers with an
extra level of assurance that we will meet their requirements."