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The Thlevel Humidity Meter Sensor Thermometer 3-pack offers precise indoor temperature (-50~+70℃) and humidity (20%-90% RH) monitoring with ±1.0℃ and ±5% accuracy. Compact and battery-powered with LR44 cells, these mini hygrometers are perfect for multi-zone environmental control in greenhouses, basements, wine cellars, and delicate storage areas like 3D printer filament boxes.














| ASIN | B07JDSHD4Z |
| Batteries | 1 LR44 batteries required. |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 95 in Garden ( See Top 100 in Garden ) 3 in Weather Thermometers |
| Colour | 3 pack |
| Customer Reviews | 4.3 4.3 out of 5 stars (10,790) |
| Date First Available | 14 Oct. 2018 |
| Display style | LCD |
| Included components | Instruction Manual |
| Item Package Quantity | 1 |
| Item Weight | 90 g |
| Item model number | TBM-40 |
| Manufacturer | Thlevel |
| Measurement Accuracy | ±1.0℃. |
| Measurement System | Metric |
| Part number | 188013 |
| Power source type | Battery Powered |
| Product Dimensions | 4.4 x 4.4 x 1.5 cm; 90 g |
| Shape | Round |
| Size | 3 PACK |
| Special Features | Lightweight |
| Specific uses | Hygrometer Thermometer Digital Monitor |
| Style | Compact |
| tech_spec_battery_description_toys | 2 x LR44 1.5V Button Batteries |
P**W
Excellent value and ease of use.
Execellent quality Hygrometer using to check humidity of 3d printer filiment. Like that you can turn it off so saving battery life when not in use. and easy to use. Functionality is good not only humidity but a temperature moniter as well Not sure of the battery life as only just received them and they were all active on arrival They look good in the cereal box with the fillament making it easy to desplay and read.
L**E
Great for tracking moisture levels around filament.
I use these to monitor the moisture level around my filament and they work really nicely. I've 3d printed some frames from thingiverse to hold them in the cereal boxes I store my filament in and you can see that the one with my filament in is at 10%, while the box with no silica gel is at 36% which is only 2% off another monitor I have showing the ambient room temp and moisture. I've found them perfectly suited to projects requiring a 45mm diameter top and 41.2mm diameter body. Battery life seems good as well. The first batch I got are still running well over a year later without issue. My only gripe is that they don't seem to show any values between 10% and 20%, but then it increases in single increments after that (21%, 22%, etc).
M**S
Highly recommend this instrument.
Good price, quality & excellent accuracy.
M**Y
Perfect for 3D filament dryboxes
i bought these to put inside 3d filament storage boxes, so that i could measure the moisture in the box. They work perfectly, and clearly display the humidity and temperature in easy to read black text on the screen, they are incredibly easy to use with no setup needed at all. I will be buying more for sure
D**.
All good
All good. Readings compare well with my other devices. Self contained (button battery)
M**H
Small and simple but not very accurate
Seems to work but - Half a degree difference in temp between the 3 of them. - The monitors arrived switched on with batteries already connected so who knows how long they have been running for in the package. - Humidity seems to be consistent between the 3. They are accurate enough for my purposes, but probably look elsewhere if you need 0.1 degree accuracy
J**F
Good, but not the most accurate.
Good value for money and handy size for putting in areas where you don't want a hydrometer to stand out. Display is pretty clear, yet the build quality isn't the best and the devices aren't of the highest accuracy.
M**.
Great product
Ready to use, batteries installed, very useful to monitor the humidity levels in our home.
N**E
De thermometers kwamen toe in bruine enveloppe samen gebundeld zonder aparte verpakking nog bijsluiter of iets dergelijks alle maal reeds in werkende staat ( maw Batterijen reeds gearriveerd) god weet hoe lang deze al actief staan.
P**.
Precisos, baratos y muy fáciles de incorporar a tus diseños.
R**W
Bardzo dobrze spisują się jako mierniki wilgotności w pojemnikach na filamenty drukarki 3D. Bateria wystarcza na bardzo długo.
S**A
Super
Ç**M
Gayet güzel ve doğru gosteriyor
Trustpilot
2 weeks ago
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