PRACTICAL WORK TOOLS · FIRST RELEASE

Temperature log analyser

Read a CSV logger file, review excursions and gaps, and export your analysis.

No sign-in. No file upload to a server. Your entries stay in this page and are cleared when you reload or leave. Export your report before leaving.

1. Enter or try an example

Open a CSV or TSV file (up to 2 MB; 20,000 readings)Or paste the table, including its header row Column separator

What you will get

Recorded minimum, maximum and out-of-range reading count.
Estimated duration above/below the limits, with explicit assumptions.
Recording gaps, a chart, an event table and a downloadable report.

Important limits

Durations assume linear temperature change between adjacent readings. A gap longer than 1.5 times the entered recording interval is classified as unknown, not interpolated. No duration is inferred before the first or after the last reading.

This tool cannot release a shipment, approve a laboratory result or replace a documented professional review.

Methods & sources

Source review: 22 October 2026. The computational method is described here; linked sources do not endorse this software.

The 1.5× gap rule is this tool’s explicit analytical convention, not a WHO requirement. Review the original record and sampling settings.

Temperature log analyser

1. Enter or try an example

2. Review your result