Temperature and also RH monitoring may be governed by specific regulations including HACCP (Hazard Analysis and Critical Control Point) controls, Food Hygiene Regulations, and European Union QFF (quick-frozen foodstuffs) Regulations, to ensure that food safety hazards are identified and controls are in place to eliminate or minimise risks to consumers.
Where data loggers are used
Data loggers are used in processing, cooking, pasteurisation,
cooling and freezing. They are used throughout cold chain storage
and distribution; in refrigerators, freezers and chilled display
cabinets; and during sterilisation procedures and in industrial
Loggers may well need to comply with the BS EN 12830 European Standard
which specifies the technical and functional characteristics of air
temperature recorders used for the transport, storage and
distribution of chilled, frozen and deep-frozen/quick-frozen food.
The temperature sensor(s) may be integrated into the recorder -
data loggers with built-in sensors; or remote from it - data
loggers with probes.
Processing and cooking
Data loggers are used in meat and poultry processing, smoking
and cooking to ensure that temperature control procedures are
correct. Loggers must be robust and in some cases waterproof to
withstand the conditions encountered. Data loggers with either
flexible or rigid probes may be required to monitor extremes of
temperature including oven and product core temperatures. It may be
advantageous to choose a unit with a robust design and suitable
temperature range for a variety of specific processes.
Temperature and relative humidity may need to be monitored
during incubation, production, transport, storage and
pasteurisation of eggs. Small, discreet devices can be used in
hatcheries and during storage and transport, and robust loggers
suitable for monitoring high temperatures can be used during
Cooling and freezing
Monitoring cooling after slaughter and cooking helps ensure that
temperature control procedures are adhered to. The data logger
needs to be durable and splash/waterproof so that it can be used
throughout the entire process. For freezing, an accompanying low
temperature probe may be required.
Cold Chain Monitoring
Meat and poultry products are sensitive to temperature
fluctuations, and environmental monitoring throughout the cold
chain is essential to ensure that specified levels are maintained
and recorded. This relates to frozen, chilled and ambient
conditions. Data loggers may well need to have the ability to
display alarm warnings, which can be mandatory in some cases.
Data loggers used in transport must be robust enough to
withstand the rigours of the journey, while being compact and
lightweight to sit conveniently with shipments. It may be
beneficial to choose a logger that can present recorded data
quickly on arrival at its destination. For larger storage areas
such as warehouses, a radio system which gathers data automatically
for direct viewing on a PC may have advantages over individual
standalone loggers that need to be downloaded manually.
Data loggers are used during sterilisation of food preparation
equipment and in industrial dishwashers to help ensure that the
correct operating temperature is maintained. A waterproof, high
temperature device will be required, and loggers with flexible
probes may be for some applications.
Using Tinytag data loggers
Both standalone Tinytag data loggers and the Tinytag Radio Data Logging System are an effective
solution for temperature and relative humidity monitoring in the
meat and poultry industries, allowing conditions to be recorded,
analysed and validated.
Standalone loggers record data which is downloaded via a USB
cable to a PC for analysis. Radio loggers gather information
automatically using wireless communications: the System consists of
a receiver connected to a computer or LAN and a number of radio
loggers which self-configure to form a robust mesh network. The
loggers work together to send information to the receiver for
viewing on a PC, across a LAN, or remotely across the internet.
Tinytags are accurate, simple to use, easy to clean and able to
measure small changes in temperature. Loggers with displays are
available which give current readings as well as recording data.
Tinytags can easily be moved to different locations, or more units
added over time if requirements change. If BS EN 12830 standards
are a factor, the Tinytag Transit 2 (TG-4080, TG-4081) and Tinytag
View 2 (TV-4020)
are both compliant.
Loggers are set up and data is presented in Tinytag Explorer, an easy to use Windows program.
Recorded data is clearly displayed initially in graphs and tables
which can be printed, copied and pasted, or exported into popular
Different Tinytag models are designed to suit specific
applications. Robust, splashproof or waterproof units are ideal for
processing and cooking. For very high
temperature applications including oven and process monitoring, a
range of accompanying PT100
probes is available which monitor from -50 to either 300°C or
600°C and which are waterproof to IP68.
The Tinytag View 2 (TV-4076) has an integral
stab probe making it ideal for monitoring meat and poultry core
For cooling and freezing, there are
similar robust, waterproof units with accompanying PT 1000 probes
for very low temperature monitoring. Tinytag PT1000 probes monitor
from -80 to +100, or -200 to 200°C.
Tinytags used for monitoring throughout the cold
chain. Small, robust standalone Tinytags can be left
to record for long periods to accompany shipments by road, rail,
sea and air. They monitor in warehouses, storage and display areas,
and loggers with external probes are ideal for hard to reach areas,
fridges and freezers.
The Tinytag Transit 2 (TG-4080, TG-4081) is a
cost-effective temperature logger ideal for monitoring shipments.
Its slimline, lightweight design allows it to be placed
unobtrusively with products and packaging. As well as downloading
recorded information via a USB cable to a PC, data can be offloaded
using the ACS-3030
inductive pad. The logger is placed on the pad, which plugs
into the PC with a USB cable. This speeds up the downloading of
multiple loggers - helpful if results are needed quickly - and
useful in harsh or wet environments where exposing the logger's
connections can be avoided.
Rugged Tinytag Plus Radio Loggers, which gather data
automatically using wireless communications, are ideal for cold
chain warehouses with multiple monitoring points. They are also
used in dynamic logistics operations: loggers can be located in
refrigerated delivery vehicles to record and store temperature data
while the vehicle is out. On return to the depot, data is offloaded
once the loggers are back in range of the radio mesh network.
Offloading data automatically can be beneficial not only in
practical terms of not having to download loggers manually, but
also if analysing results quickly and vehicle turnaround times are
Both standalone and radio loggers feature alarm warnings which
can be vital and in some cases mandatory for cold chain
To withstand the intense conditions experienced during
sterilisation processes, robust,
waterproof Tinytags with accompanying high temperature probes are
an effective solution. For monitoring industrial
dishwashers, washer disinfectors and other cleaning
processes, the Tinytag Splash 2 is
ideal. This waterproof data logger is designed for high temperature
monitoring and has a robust, high visibility yellow case with a
short external probe for fast response times. It is used with the
ACS-3030 Inductive Pad for quick and easy data download.