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Temperature data records can be manual, in the form of
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a paper ticket, or saved electronically. A temperature recorder with a 512k memory can record a year's worth of data between downloads, assuming a log every 15 minutes, which is the interval recommended by Transfrigoroute UK on journeys of up to eight hours. You must keep the records for a year and once the units memory is full, it simply starts overwriting the oldest data.
Many temperature recorders have integral thermal printers for hard-copy records. You can also download the memory via infrared, a laptop, the internet or by local radio networks. Prices start at under £.200 for a basic unit.
ADAMS INSTRUMENTS 01296 436712 Best known for its 306S battery-powered mechanical recorder. The temperature is etched on a waxed disc by a stylus. Other models include the electronic 337S Miniprint till-roll style recorder in a compact 170x170mm box.
CARRIER TRANSICOLD 01925 401200 DataCold 250 is Carrier's basic recorder with two-temperature, single-event recording and integral printer. DataCold 500 is the more sophisticated model with a 12-language display and can connect to any Carrier refrigeration unit.