Thlevel Temperature Humidity Meter Small Digital Hygrometer

These temperature / hygrometer units came ready to use with batteries, there are no buttons, switches or any settings to configure. The display shows the current humidity and temperature reading in degrees Celsius and updates the readout roughly every 10 seconds. The units are very compact, about the size of a 9V battery. They appear to be designed to slot into something, like a cabinet or container to monitor the interior temperature / humidity, however they sit fine on their own standing up. I placed these in different rooms, each on top of a door frame as shown. They will also sit neatly along the edge of a shelf. Although the display does not light up, they are clearly readable even in low light, particularly the large humidity reading digits. The readings appear to be accurate with the 6 pack I received all being within 1 to 2% of each other for the humidity and within 0.5C for the temperature as shown. The only feature I wish they had is a Min / Max reading like some other hygrometers, but for the price they are great value for monitoring the humidity around the house, such as to see how well a centrally positioned dehumidifier is at tackling the humidity in each room.

Had these for about 4.5 years now. They aren’t the most accurate things in the world but they are certainly close enough for getting a rough idea of how humid different parts of your house are. The temperature is also close enough to my hive thermostat but again I obviously haven’t calibrated any of these. Batteries last a long time and are cheap to replace. Been 100% reliable and all still work perfectly 4.5 years later.

Cheap and cheerful, shame they come with the batteries already activated. I can't say how accurate they are as I have nothing to compare them to that is calibrated. They do show consistent readings across all three though so that's a good sign. Purchased to show humidity levels in filament boxes so I'm only really interested in the reduction, not whether they are correct.

Was initially concerned as all three were reading very different humidity when I first got them out of the packaging, but after a few days in my humidor they’re all reading accurately with only a small discrepancy in temp (+\- 0.5c)

I dont think these are the most accurate. All three show slight variation for temperature and accuracy so it really depends on what you plan to use them for. We needed one for the nursery and it's good enough for that. They are a good size to put in the room so they are not visible.

Decent sensors that I've placed all around the house so I can keep my humidity level. There is also a temperature monitor on the top right so it can tell you the temp of the area as well so not just the humidity.

Very handy and does the job

These are very small and designed to fit into a panel hole, however they stand on a flat surface fine. I was primarily interested in using them in my 3d printer filament container. They work well in this context. They all showed the same reading when together +/- 2%. Some other reviewers said they didn’t, but these were good. Great price as well. They do come with the batteries activated, but that’s not really an issue.

Połowa przestała działać po ledwo 5 miesiącach (ekran nie wyświetla wszystkich cyfr/znaków poprawnie).

Gia' acquistati una volta e mi hanno completamente soddisfatta. Li ho ricomprati per la casa delle vacanze dove scendiamo anche all'interno a temperature basse. Confermo quanto già scritto nella precedente recensione: funzionali, precisi e piccolini. Proprio quest'ultimo è un loro punto di forza infatti non ingombrano e non si "notano". Le batterie con cui vengono venduti sono "durevolissime": devo ancora sostituirle ai primi!

funciona bastante bien

Działa

Hygrometer sind rechtzeitig geliefert worden und funktionieren wunderbar. Batterien wurden mitgeliefert und Messunsicherheiten liegen in den angegebenen Bereichen (an zwei Stellen im Haus getestet). Die Hygrometer sind klein und ohne unnötigen Schnickschnack. Man sieht auf den ersten Blick deutlich die relative Luftfeuchtigkeit und rechts oben die Temperatur. Mehr brauche ich nicht und bin daher komplett zufrieden. Klare Kaufempfehlung! Einziger Kritikpunkt: Die Hygrometer brauchen eine weile, sich an eine neue Umgebung einzustellen. Wer also zwei hygrometer aus verschieden feuchten Räumen zusammen stellt, sollte minimum 5 Minuten warten, bis sie sich neu eingestellt haben. Ich kann mir aber gut vorstellen, dass die meisten Hygrometer eine gewisse Equilibrierungszeit benötigen, deshalb gibt es hier keinen Abzug. Die Preis/Leistung ist für mich super!