Mini Hygrometer Thermometer 2PCS Mini Digital Humidity Gauge, AikTryee Hygrometer Indoor Humidity Monitor, Temperature Humidity Gauge Meter for Humidors, Greenhouse, Garden, Cellar, Closet, Etc

I wanted these for a cigar humidor and to use on a shelf in my room adjacent to the humidor. I was wary based on some reviews and the price point. In short, they seem to work just fine. My small humidor has an analog hygrometer which seems to read about 4% lower than this digital one placed inside the humidor (i.e. analog 68 and digital 72.) Which is more accurate I dont know, but that they basically agree tells me theyre basically working. The adjacent one reads around 58-60 as conditions change in the house. Theyll be interesting to monitor as summer comes on and we install the ACs. They came with batteries installed AND spare batteries, a huge plus since they take button cells. Also, at least in the ranges Ive seen them operate, the values change in increments of 1, not large chunks like switching from 54 to 69 etc as I read in another review. Cheap product, so your mileage may vary

TLDR; don’t expect pinpoint accuracy, but it’s reliable for general readings. Good purchase for its price point. I have no need for scientific measurements; I just need to make sure the air is wet enough for my plants without spending an unreasonable amount. If you buy a pack of two, you notice the two will show different readings for both humidity and temp, and there’s not really a way to calibrate these. However, the readings are still within 1 or 2 degrees of each other. And from testing by transitioning from normal room humidity to the inside of my tropical plant enclosure, it’s definitely able to pick up the changes in humidity within a minute or so. Another note: leaving these in 90%+ humidity for a long time (maybe 6hr+?) will cause the display to glitch out and become unreadable. Moving the device back to lower humidity will fix it if you wait a bit. And if not, just remove the batteries and put ‘em back. That usually fixes everything.

Works great for a while but then the screen went out so I tried changing the batteries and that didn’t fix it so I just bought them again and the new ones screen went out too so I might not be purchasing again but while it worked it worked great

very good though it did not my grandchild pull power :)

These work well, are small and unobtrusive, and come with batteries.

Id buy it again because there are so many but I did have about 3 or 4 that didnt work. Some also dont match up.

I got these for the inside of my bearded dragons tank, and they adhere to the tank, easily or easily to read seem to be accurate

I purchased these to replace the one my python knocked in her water dish and permanently damaged. I mounted these at opposite ends of my 40-gallon terrarium to obtain readings from both the warm and cool ends. In addition to coming with batteries already installed, it came with two sets of replacements, along with Velcro for affixing to interior walls. Use a custom-cut plate of plexiglass to tape under the screen cover to contain humidity, add a heat mat and thermostat and your climate control is good to go!

Definitely worth the money you get two temperature/humidity gauges 4 sets of batteries and two velcro tapes. I am highly impressed both gauges were pretty much spot on and also were within 1 degree for temp and 1-2 points off humidity compared to my zoomed hydrometer. I want to note that the probe it is placed at the bottom of my gecko tank so there naturally would be a little bit of a discrepancy between the zoo med and the two aik tryee mini hydrometers. My zoo med hydrometer was about $10 this was half the price and you get 2 hydrometers plus extra batteries I wish I came across this earlier. I am happy with my purchase and will be purchasing more for my various reptile tanks.

I got this for my new crested gecko and new hermit crabs. The product was already on and working out of the package. The package came with extra batteries and 3M adhesive to stick to. I used Velcro command strips for mine. Would recommend for anyone who needs to track temperature and humidity!