Mini Hygrometer Thermometer

These little hygrometers are perfect for my 3D printing setup. I use them inside my AMS/dry boxes to keep an eye on humidity and make sure my filament is staying dry. They’re small, easy to read, and simple to place wherever you need them. For the price, it’s a really good way to monitor humidity without overcomplicating the setup. I like being able to quickly check if my filament storage is staying where it should be, especially for materials that are more sensitive to moisture. They are small meters, so I wouldn’t expect lab-level precision, but for everyday monitoring they do exactly what I need. Great value if you use filament dryers, storage boxes, camera gear storage, cabinets, or anywhere you want to track humidity and temperature.

Tiny but works perfectly. Gives accurate temp and humidity readings instantly, and the screen is clear and easy to read. Great for keeping an eye on room conditions or storage spaces. A must have for home-labs, hardware, and 3D printing.

These help me keep an eye on the humidity levels of my filament. I was also able to use them to set the temperature to dry my filament in a food dehydrator. Easy to read and switch the display between metric and standard units. Small enough to fit in the middle of a spool of filament. Not instant, but it was responsive enough for my needs.

These things work pretty well. I bought two, one to sit inside my AMS and one to sit outside, so i could compare the AMS internal properties to the room properties. The two devices seem to be pretty consistent in their readings. I did however notice that the AMS reports a higher humidity than this meter does. The devices arrived with batteries in them, but unlike other products that have batteries pre-installed, these didn't have a pull tab to break the circuit until use, so the batteries are somewhat depleted (i presume, based on the dimness of the displays). No biggie though - they accounted for this and included extra batteries (i haven't installed them yet though). I plan to buy a few more of these and put them into my filament storage cases.

I have bought 6 of these total and all are within 1 degree & 1% difference to each other. Also very consistent in unison with my thermostat. Comes with batteries installed as well as extras. The mounting discs are fairly sticky and holds well. All in all, pretty good for the price.

I love it. It's small and accurate. I have one in my closet and one in my room. I was going to check my humidity levels and room temperature in general. Works well and for a great price.

I picked up this 6-pack to monitor overflow cigars that I keep temporarily stored in airtight Tupperware containers. I tend to buy cigars in larger quantities, so sometimes they sit before I make room in my humidors. These little hygrometers are perfect for that purpose. They’re small, easy to tuck inside containers, and give me a quick snapshot of temperature and humidity. They’re not lab-grade precision, but they’re close enough to keep an eye on things and make sure nothing is drifting too far. For the price, getting six of them is a no-brainer. If you need simple, affordable monitoring for secondary storage, these do the job.

We’re using these to maintain the enclosure for our one-year-old sulcata tortoise. They’re easy to see and adjust the humidity for the enclosure. They also take a beating from the tortoise who likes to dig. Great quality and easy use.

They’re very helpful, I use it in my jumping spider terrarium.