If your logger has just two lights on the front, OK and Alert, then it does not have a replaceable battery. It has a fixed battery that will last between two and three years with normal use (i.e. 24/7 logging at 5 minute intervals).
If the logger has a display, it most likely has a replaceable battery – there are some exceptions.
Fixed battery
Replaceable battery
We recommend that you buy a known brand
When you remove the battery, any data on the LogTag will be lost so download the data before you begin.
Hibernating is basically putting the logger to sleep.
Important: Failing to hibernate the logger may result in serious memory corruption. As a result, you may no longer be able to use the logger.
The best thing to use is a small jeweller’s screwdriver. Try and keep this sticker intact so that you can reuse it.
Use a coin, or even the replacement battery to turn the battery door cover anti-clockwise
Use the screwdriver to carefully pop the old battery out of its enclosure.
Please dispose of the battery in accordance with local regulations
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.
