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Alton W
10-06-2025I have had these for a couple of years. They come with batteries installed. Best to reboot them before use. Take both batteries out, make sure the screen goes totally blank, reinstall batteries. If you reinstall batteries before screen goes totally blank it will not reboot, it will go back to what it was before batteries were removed. If you have problem with them down the road, do a reboot.
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Anastasia
> 3 dayI have mini glass plant terrariums and hated putting in wired and bulky temp gauges in them. These are simple and they don’t take away from scenery. I’ve had them for a good 2 ish months, I wanted to really see if they’d last more than a week or so. They read very well!
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Lisa in WA
> 3 daySmaller than I expected (read the description, duh), but that actually works better for my purposes. Two reptile enclosures, two hygrometers in the pack, win! I also appreciate the extra batteries and the double-sided tape. The only issue is that the tape will cover nearly the entire back, including the battery access, and I cant see that going well when I have to replace the batteries. I cut the tape down, but am fairly sure they wont stay stuck for any length of time. And you probably dont want to cover the little holes with the tape, either. Great value for the price!
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Rachael M.
13-06-2025Product exactly as described, came with double sided tape pads, large numbers and easy to read; measurement are consistent between the two within 1 degree and consistent with my side of tank heat indicator strip within about 3 degrees. For the price, this is a reasonable set that will give you a good idea of temp and humidity. May not be exact, but then again... these things rarely are exact. For my purposes, the 1-3 degree difference is not a big deal. Also came with extra batteries which is a huge plus since they are little button batteries and I would have to order more. Now I can change them when they go out and go ahead and order new ones without having to take them out of the tank, see what kind, and then wait several days to get them. Would buy again.
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Sean Doyle
> 3 dayWhen placed side by side they give a different reading...close by about 1 degree but being side by side the reading should be the same and it is NOT.
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Briahna DeAnda
12-06-2025I 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!
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Haven
Greater than one weekThese work well, are small and unobtrusive, and come with batteries.
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ladulce
> 3 dayIt showed up working and I was thrilled with the no fuss, having to do nothing with it for it to work. It came with stickies to hang on my terrarium and with extra batteries! I have had it for a few weeks and it works beautifully! Great purchase!
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Patrik
> 3 dayA 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.
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logan
> 3 dayIt reads the temp and humidity, both consistently read the same values within 2% and 0.3 degrees when I had them next to each other. This is all I expected from these. If you need anything more accurate than you’ll probably want to spend more money. I ended up buying four more of these to place around my house to keep track of temp changes. As for battery life I have no idea, I’d assume they last pretty long since they shouldn’t use much power. They did include extra batteries which is nice.