Download readings from your LogTag

How to download your readings

Automatic downloads

When you connect a logger to your PC while you have LogTag Analyzer software open, the software will automatically begin the download process. So, the first step in your download process should always be to open the LogTag Analyzer software.

RECOMMENDATION

The feature can be turned off an on with this button in top right of the screen, but we would recommend that you leave it on.

Auto download button

The download process

When you connect the logger, you will see a notice pop up telling you that a new LogTag has been detected.

No readings

If the logger has no readings recorded (for example, if it is new, or has not been started since configuring) you will see this notice …

Readings found

If there are readings saved on the logger, you will see this message …

New logtag

In the background the software is downloading the readings and saving them as a report file on your PC. When the file has been saved, it will open, by default, to the graph screen.

It is important to understand that once you see the graph pop up, the download process has finished, the file has been saved to your computer, and it is safe to remove the logger.

Can I change where the downloads are saved?

Absolutely. Here’s an article showing how to do it.

Recommended method for vaccine fridges

We get a lot of calls from people with strange procedures for downloading and saving the data from their loggers. Some of these have been passed down from person to person over the years, and no one really knows where they came from.

Here is our recommended method …

Open the LogTag Software

Open the software...

When the LogTag Analyzer software is running it automatically detects any loggers that are subsequently connected to your computer.

Get the logger from the fridge

...then get the logger

Waiting until the software is open before getting the logger from the fridge shortens the time the logger is away from the cold.

Connect the logger to the computer

Connect the logger to the computer

Depending on the logger type, this will mean either inserting it into the Reader, plugging it into a USB port, or connecting a USB cable to it.

Wait for the download

Wait for the download

The software will detect the logger being attached and automatically download and save the data as a report. It will then open the report.

Return the logger

Immediate return the logger

As soon as you see the graph, you know the download is complete. Immediately disconnect the logger and return it to the fridge. Your goal should be to have the logger away from the fridge for no more than 30 seconds.

Check your report

Check the report

Check the report for temperature breaches or unusual behaviour that could threaten your vaccines. Check the battery status.

Manual downloads

We highly recommend that you use the automatic downloads by opening the LogTag Analyzer software and simply connecting the logger to the PC.

But, you can trigger a manual download on a connected logger by going to the top menu and choosing LogTag > Download

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Latency explained

What is latency?

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.

Differrnt connections

Connecting your logger

Depending on the type of logger you have, connecting your logger to your PC means either:

  • inserting into the Reader,
  • plugging it into a USB port, or
  • connecting it via a USB cable.
comparing gen1 and gen 2

What's so good about USB?

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.

comparing gen1 and gen 2