home humidity log
Record temperature and relative humidity for two weeks. Dew point is calculated each day. Data stays on your device.
You want to know whether indoor air is persistently damp, not just in one moment.
A free digital product. Fields stay in the browser, not on the server. Do not type names or emails.
Days filled
0
Average RH
—
Average dew
—
You need at least three days with T and RH for a useful reading. One measurement is not a climate.
| Day | T °C | UR % | Dew (est.) | Laundry | Notes |
|---|---|---|---|---|---|
| 1 | — | ||||
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| 14 | — |
A free digital product. A longer version with extra charts is under review: it will not be sold until it is actually more useful than the free one.
Useful next step
If RH stays high, calculate dew point and run the guided diagnosis before you buy.
Some links go to Amazon.it and are affiliate links: we may earn a commission, at no extra cost. They are category examples, not lab reviews. Amazon.com is not connected on the English edition.
10–25 €
Example desktop hygrometer for diagnosis. Without a relative-humidity number every tip is guesswork. Not a lab review.
When: Always, as the first diagnostic step.
Not when: It does not replace a moisture meter or a rising-damp survey.
View on Amazon.itAmazon.it affiliate link (tag qordac21-21): we may earn a commission, at no extra cost to you. A category example, not a lab review. Amazon.com is not used.
25–50 €
Example room sensors for a multi-day log. A log beats a single reading. Not a professional alarm.
When: Recurring condensation, night-versus-day doubts, two rooms to compare.
Not when: It is not a professional alarm and does not measure the wall.
View on Amazon.itAmazon.it affiliate link (tag qordac21-21): we may earn a commission, at no extra cost to you. A category example, not a lab review. Amazon.com is not used.
70–120 €
Hub for the SwitchBot ecosystem. It does not measure humidity on its own: only if you already use SwitchBot sensors.
When: You already have (or want) SwitchBot meters and need the app / Matter bridge.
Not when: It is not a hygrometer and not the first diagnostic purchase.
View on Amazon.itAmazon.it affiliate link (tag qordac21-21): we may earn a commission, at no extra cost to you. A category example, not a lab review. Amazon.com is not used.
8–18 €
Mini hygrometer, same job as the category: room temperature and humidity. Category example, not a lab test.
When: Small spaces, or when you want to move it from room to room.
Not when: It does not measure moisture in the wall.
View on Amazon.itAmazon.it affiliate link (tag qordac21-21): we may earn a commission, at no extra cost to you. A category example, not a lab review. Amazon.com is not used.
15–30 €
Two mini hygrometers to compare rooms (bath vs bedroom). Zone comparison, not a survey.
When: You want to see whether the problem is in one room only.
Not when: It does not replace a one-week log with one reliable instrument.
View on Amazon.itAmazon.it affiliate link (tag qordac21-21): we may earn a commission, at no extra cost to you. A category example, not a lab review. Amazon.com is not used.
15–35 €
Single smart sensor. Same category job: T and RH over time, via an app. Category example, not a lab test.
When: One room to follow for a week.
Not when: It does not measure moisture in materials.
View on Amazon.itAmazon.it affiliate link (tag qordac21-21): we may earn a commission, at no extra cost to you. A category example, not a lab review. Amazon.com is not used.
25–50 €
Smart sensor also for damp rooms (bathroom). Category example: for a log, not a survey.
When: Bathroom, laundry or a window ledge where a desktop meter would suffer.
Not when: On its own it does not extract vapour or dry walls.
View on Amazon.itAmazon.it affiliate link (tag qordac21-21): we may earn a commission, at no extra cost to you. A category example, not a lab review. Amazon.com is not used.
No. It stays in the browser (localStorage). Do not type names, emails or addresses.
Condensation and mould depend on duration, not a single reading. Three days are the useful minimum; two weeks catch weekends and laundry.
Not yet. A longer version with extra charts is under review. We will not sell it until it is more useful than this free one.
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