When you install LogTag Analyzer on your PC, the installer automatically creates a folder in your Documents folder called LogTag Data, and by default, this is where the reports are automatically saved.
User > Documents > LogTag Data
It is possible, however, to change where the reports are saved.
The graph is divided into three colour-coded sections. The sections are defined by the thresholds saved in the Configurations panel.
In the example above, the logger is configured to have an upper threshold of 8° and a lower threshold of 2°. These thresholds can be seen clearly on the graph.
To zoom in on the graph, click and drag to create a rectangular selection around the area you wish to zoom in on. You can do this multiple time to zoom right in.
To zoom out, click on the Zoom Out button on the right, or the Zoom Out icon in the top ribbon.
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.
