What’s going on? You’ve downloaded your data and this week’s data is not there.
The problem is probably in the way your logger’s memory is configured.
If you choose the first option, the logger will record until its memory is full, and then start overwriting the oldest memories with new ones. This is the preferred behaviour.
However, by default, the second option is selected. This means that the logger will log until the memory is full and then stop.
If this is the case, it would explain why your data is out-of-date – the logger’s memory is full and it is not recording any more readings.
To fix this, reconfigure the logger and select the Overwrite option.
Latency, when it comes to temperature logging, refers to the delay between a change in temperature and when that change is detected and recorded by the logger. This delay can be due to the sensor’s design, the materials it’s placed in, or the logging interval. While it might sound like a disadvantage, latency can actually serve a useful purpose in certain environments—particularly where short-term temperature spikes are common but not harmful.
For example, in a busy commercial fridge, the temperature may briefly rise every time the door is opened. A logger with high latency won’t immediately react to these short fluctuations, helping to avoid unnecessary alarms or false data indicating a problem when there isn’t one. In these cases, a slight delay in response acts like a filter, focusing attention on real issues—such as prolonged exposure to unsafe temperatures—while ignoring the everyday ups and downs that don’t affect product quality or safety.
Depending on the type of logger you have, connecting your logger to your PC means either:
First Generation LogTags use a separate Reader (sometimes called a dock) for configuration and for downloading recorded data.
The Second Generation loggers only require a USB port or cable. Apart from saving the cost of the Reader, this makes them much better suited for shipping, because the recipient doesn’t need a LogTag Reader to download a report about the shipment’s journey.
