Rollog temperature loggers are a thermometer with memory. They continually monitor the temperature and the record the date, time and temperature in memory. These readings can be then downloaded to a computer to be viewed, saved and reloaded at a later date.
This allows you to know exactly what the temperature was at all times. You can determine if your goods are usable, if something is too hot or cold, or to prove that everything is acceptable. The date and time information allows you to know exactly when a problem occurs and can often answer the why and when question.
The temperature loggers (Thermocrons) are constructed of stainless steel and are almost indestructible. They are also water resistant so they be washed, submersed and sterilised.