EUR 7.49, rated 4.5 from 373 reviews. It reads 20 to 95 percent humidity and minus 10 to 50 degrees, and the maker prints the healthy band: 40 to 60 percent at 18 to 23 degrees. Temperature accuracy is stated, humidity accuracy is not.
What you need to know
Dutch homes hit the same problem every October: mist on the inside of the windows, mould in the corner of the bathroom, and a landlord and a tenant who disagree about why. Turning that argument into a number costs less than people expect, about 7.49 euro for a thermo-hygrometer. TFA Dostmann prints the standard straight onto the listing: a healthy indoor climate is 40 to 60 percent humidity at 18 to 23 degrees. Rated 4.5 from 373 reviews.
- Range: 20 to 95 percent humidity and minus 10 to 50 degrees; the listing states a temperature accuracy of plus or minus 1 degree. (source 1)
- The reference band the maker gives on the listing: 40 to 60 percent humidity at 18 to 23 degrees. (source 1)
- It measures 71 by 71 millimetres and weighs 48 grams, with a magnetic back and a fold-out stand, and ships with a CR2032 battery and a six-language manual. (source 1)
- Priced at 7.49 euro against a 7.99 list price, rated 4.5 from 373 reviews, flagged Buy 4 save 5 percent, and shipped and sold by Amazon. (source 2)
- Model 30.5059.02, ASIN B0DQVL6D9J, made by TFA Dostmann, with a memory for highest and lowest values. (source 1)
Start with how many to buy. Damp is not one number for a whole flat: the bathroom, the bedroom and the room on the outside wall often read more than ten percentage points apart, and one unit only stands in one place. 7.49 times the number of rooms you want to watch is the total, and the listing offers 5 percent off four, so four come to 4 times 7.49 times 0.95, which is 28.46 euro, or 7.12 each. If you want to know which room is the problem, four reading at once beats one carried around, because a moved unit needs time to settle again.
The second point is accuracy, and it has to be said plainly: the listing states a temperature accuracy of plus or minus 1 degree, but gives no humidity accuracy anywhere on the page. So a reading sitting at 58 or 61 percent tells you that you are against the ceiling, not whether you have crossed it. The usable technique is not to watch the live figure but to use the maximum memory: if it has not fallen back under 60 two hours after a shower, the problem is ventilation rather than weather.
Third, line this up against how Dutch housing disputes actually run. Landlords tend to say the occupants do not open the windows; tenants tend to say it is the walls and the frames. A meter with a high and low memory, read at the same time each day, turns that into a string of figures you can put on the table. It costs nearly a hundred euro less than a dehumidifier, and it is the step that comes first.
The meter link on this page is an affiliate link. The price is exactly the same as buying direct, and Hokimi may receive a small commission.
- Price
- 7.49 euro, 6 percent under the 7.99 list price
- Rating
- 373 reviews averaging 4.5
- Specs
- 20 to 95 percent humidity, minus 10 to 50 degrees, plus or minus 1 degree on temperature
- Platform
- Amazon.nl, ASIN B0DQVL6D9J
- Checked
- Listing read on 5 September 2026
Dates, availability and external conditions can change. Confirm the latest information with the official source.
Why it may be useful
EUR 7.49, rated 4.5 from 373 reviews. It reads 20 to 95 percent humidity and minus 10 to 50 degrees, and the maker prints the healthy band: 40 to 60 percent at 18 to 23 degrees. Temperature accuracy is stated, humidity accuracy is not.
For users who want less searching and clearer information in English, Dutch or Chinese. Recommended.
No comments yet — be the first!