Temperature monitoring system cost UK (16 figures)

Every row is a verbatim sentence read from the named source's own page through our fetch service on the date shown, hash-pinned to the stored read (the sha of the page's visible text; the raw page is mirrored to R2).

20 of the 45 named sources that could be read published a usable figure; 25 published none and are recorded as not published, never filled in; 6 could not be read (blocked, dead or unreachable) and count nowhere.

The headline figures (median, minimum, maximum, quartiles) are over ONE figure per source for each breakdown it prices, in GBP (a source's median where its page yielded several accepted sentences for one breakdown), so a page that gives figures for several breakdowns gives one for each and N counts 16 figures, never sentences; 299 candidate sentence(s) were refused by a reviewer with the reason recorded.

The fuller derivation this dataset is chartered to grow into (not yet what the figures above are; they are each source's own published figure as read): one row per supplier per tier (probe thermometer, standalone logger, wireless sensor plus gateway, subscription platform): the published price, its unit (one-off, per site per month, per sensor, per year), whether it is published at all, and the currency it is published in.

Across the rows: the median and spread per tier, the SHARE of suppliers publishing versus quote-only measured tier by tier - the software tier publishes and the hardware tier largely does not - and the five-year whole-life cost of one monitored fridge (sensor plus gateway plus subscription) computed across suppliers, which no supplier publishes.

Repriced-since on every read; a supplier that stops publishing is recorded not-published, because the publishing share is itself the figure.

299 candidate sentences on these pages were refused by a reviewer; each refusal and its reason is recorded in the review ledger.