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

this works great

Decent!

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.

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

Works amazing. Helped a TON with not having to guess the % my humidity was at.

Seems to read fairly consistent between the two I ordered. Only had it for 3 months but havent had to replace the battery yet

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!

Helped keep humidity levels in my incubator on track. Never once had any issues

A good bang for your buck, not exactly lab grade equipment (the two units does not quite agree on either humidity or temperature) but good enough for my purpose - checking if my Swamp Cooler will work.

Purchased a set of two, used a Boveda One-step calibration kit over 24 hours to establish a baseline for both hygrometer readings: (1) Temp read 4 degrees low (displayed 69* to actual 73*); humidity read 3% high (displayed 78% to actual 75%) (2) Temp read 3 degrees low (displayed 70* to actual 73*); humidity read 4% high (displayed 79% to actual 75%) According to the product documentation Temperature measurement accuracy: ±2℉; Humidity measurement accuracy: ±5%RH. These systems were out of spec for temp and within spec for humidity. Im using these in clear plastic containers to store cigars while I reseason my humidors. As a rough guide they work fine, the display is clear and easily readable through the container wall. DONT rely on these as precision instruments though, pickup a more precise hygrometer for a long-term solution. (Xikar makes a nice one that can be calibrated)