Thlevel Humidity Meter Sensor Thermometer with Humidity Small Thermometer Room Temperature for Greenhouse Basement 3 Pack

After reading reviews I calibrated the 6 units I bought alongside 4 other higher quality devices I already owned.After 3 days of regular monitoring I found the following:Humidity - all units within 1% of each other and within 1 - 2% of calibrating devicesTemperature - all units within 0.2 degrees C of each other and between 0.7 and 1.0 degrees of calibrating devices ( slightly higher )Given the price and size I would highly recommend because the variations in humidity and temperature are small (in particular humidity)** update ** the test was in humidity of circa 50%, upon use in the 60% range I found the units to be out by around 5% but the good thing was, it was consistent across all the units so I was able to use ok because calibrated alongside trusted kit. I guess the answer is they aren’t super accurate but can be used reasonably reliably if you can calibrate.

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.

After my latest adventure in 3D printing, I stumbled upon the Thlevel 3-Pack Hygrometer Thermometer, and let me just say—these little gadgets have changed my printing game more than my printer ever did!First off, I used these monitors in my Bambu P1S AMS unit, and after printing a 3D model to hold them they fit snugly like they were born for the job. Now I can keep an eye on the humidity while I’m printing, which means no more warping or failed prints due to the great humidity mystery. You know, that thing where you think, “Is it me, or is my filament just dramatically melting into a puddle of despair?”These hygrometers are easy to read—big, bold numbers that scream “LOOK AT ME!” even from across the room. Plus, they come in a three-pack, which means I can have one in the printer, one in the basement, and one in my sons room (for all those moments I wonder if my son is creating a tropical rainforest in there).The best part? They help me monitor the humidity levels in my house, and boy, does it keep me on my toes! If it gets too humid, I can adjust my dehumidifier faster than you can say “failed print.” It’s like having a mini weather station that only cares about my filament’s wellbeing.In summary, if you’re into 3D printing or just want to keep your house from feeling like a sauna, grab these hygrometers. They’re reliable, easy to use, and a must-have for anyone who believes that accurate humidity levels are the secret to life—right up there with pizza and coffee.

Perfect for dealing with damp in my house and for keeping my terrarium at the right temp and humidity level!

Not sure! Of the three pack all three show different temps and moisture levels in three plastic boxes stacked on top of each other. I suppose the readings could vary slightly but currently they say between 23 and 19 temp, and between 10% and 23% humidity. Not that easy to read as not very bright. No where near as easy to read as the other ones I bought direct from my 3D printer supplier.

Only day 1, but they appear to work well. Just a minor discrepancy between their readings, which does fluctuate a bit. Overall, I think they'll do just fine.

Just got into 3D printing an wanted to be able to check the temperature and humidity in the AMS, the body of the printer and the room itself. These were cheap for 3 units so decided to try. As you can see from the photo, when the units are in the same place, 1 out of the 3 gives a slightly different value to the other 2. It is only a small amount but I would have hoped they would have been a bit more consistent. I will use but if you need accuracy then you may want to bear this in mind.

Helpful in my incubators