Xetron Elog20 Multi-Use Temperature Humidity Data Logger Recorder with Detachable Buffered Probe, up to 16000 Points, PDF Report, Calibration Certificate

Great unit but be very careful when you replace the battery. It looks like a standard AA, but it is not.
It’s a 3.6V battery and the battery compartment isn’t labeled.

Sono soddisfatto del prodotto, non molto intuitivo all'inizio, ma funziona bene

Good build quality and accurate readings and big memory. It's configured to °F by default and the only way to change this is by installing the log software and connecting the device to a pc.
I removed 1 star because currently it doesn't support linux which is my main platform. Imho device drivers should always be open source, especially when the device configuration depends on them because when you upgrade OS to newer version or you switch OS old drivers aren't supported and you are left with a perfectly working but totally useless device. Open sourcing the drivers allows the development of new drivers from the community.

Thanks for recognizing the issue I had and quickly sending me a replacement!! 5 Stars in my book!

This little device is awesome! I use it to test medical refrigerators and freezers. It really comes in handy in troubleshooting the end users. I hear things like "Oh my god, my refrigerator sucks and is always out of temperature." When I hear this, after I verify the temperature is correct, I throw this baby in there and lit is sit and record the temperature for 24 to 48 hours. After that, I pick it up and download the graphs. I then export the graph into a nice professional looking report and present that report to the end user. You can't argue with data!