Vaikby 6-Pack Mini Digital Thermometer Hygrometer, Indoor Humidity Monitor, Temperature Humidity Gauge Meter with Fahrenheit (℉) for Greenhouse, Garden, Cellar, Closet, Fridge

These have performed way better than I thought they would. They do come with batteries already in them, so the devices are on. I simply removed them and saved the batteries for when I need them. I'm currently using 4 of the six throughout my room and house. They are all pretty accurate. They only differ by 1 to 2 degrees from each other, but the humidity is spot on (they correspond to the distance to the window or humidifier). I bought these to track the humidity in my room because I have birds and plants in my room. The devices are small, black, and don't look bad at all. They were able to regulate themselves within 3-5 minutes. The response time is about 1 minute. They respond to changes in humidity almost instantly after calibrating to your area. In my experience, these testers are more valuable than 5 dollars. They have been extremely helpful to me. My budgie needs stable humidity levels due to his health and they let me know almost immediately when I need to turn my humidifier on and off. They are also very durable and have held up well. I would for sure purchase again, and I recommend this item.

I can’t complain how it works, but I should’ve paid more attention that it’s showing humidity as a large number and the temperature is a tiny number. I didn’t return them, and I probably should have, but it was my fault for not reading the descriptionproperly.

Great for the cigar humidors I have. Only issue, is I have already replaced the batteries in 4 of them. Work great though and convenient to have.

They’re good for the price

First of all, I think this is a decent product. I ended up returning it mostly because of my personal preferences, but for what it is, it offers fair value and does what it claims. I only compared two sets from two different brands, and in my case, I preferred the round version from the other brand. These square ones are not bad, but I did notice small discrepancies. Even units from the same pack, placed next to each other, can show slightly different temperature and humidity readings. It’s nothing crazy, and it stays within their stated accuracy (around ±2°F and ±5% relative humidity), but I’m a bit picky about that kind of thing. Build quality is okay, just a bit on the cheaper side. The screen looks good straight-on, the numbers are dark and clear, but the viewing angles aren’t great. From the sides it’s fine, but from above or below it gets hard to read. I also didn’t like the layout of the screen. The way the numbers and percentages are arranged just doesn’t look very clean to me. The biggest issue for me, though, is that it only displays temperature in Fahrenheit. That alone was enough for me to return it. If you prefer Celsius, I wouldn’t recommend it. To be fair, this is not a rip-off at all. They clearly state their accuracy, and the product performs within those limits. For a 6-pack, it’s a decent deal. I’ve seen slightly cheaper square versions from other sellers for maybe $1–$2 less with similar build quality, so this isn’t the absolute cheapest option, but it’s still reasonable. Overall, it’s a solid, decent product for the price, especially if you just want something simple and you’re fine with Fahrenheit. I gave it three stars mainly because of my personal preferences, not because it’s a bad product.

They are accurate and only 2 were off by 1 percent.

Love that the set comes with batteries already in each unit, plus spares. Nice simple look and compact size that is easy enough to read and convenient to keep around. Not extremely precise, but well within reason and the trend is more important anyways. And at this price the expectations should not be so high - great price for so many of them. Overall great product!

I bought these thinking they might vary by alot in how consisent they would be comparded to each other. After receiving them and examing them carefully they are actually really consistent. I would recommend these to my family and friends. Also, they came with the batteries already installed in them.

There were 2 out of the bunch that showed 1% difference in relative humidity and/or one degree temperature difference. I considered this very, very good. When you buy only one it's impossible to know how accurate it is. The rectangular ones take 2 batteries, but the round ones use only one battery so I assume that the round ones might need battery replacement more often, like every year instead of every two years. But, lots of extra batteries are included. A very good deal in my opinion. They also fit easily into one liter mason jars with the narrow lids.

En la descripción dice juego de 5 higrometros REDONDO pero llegaron 4 rectangulares con temperatura en grados Farenheit y solo un redondo, aunque en la foto asi aparecen en la descripción no lo aclara y pensé que llegarian 5 redondos, el problema está en la descripción

Show only Farenheit , can't be set at Celsius

Amazon, how do you get away with this? on the front page it says you can change from degrees between. C/F. This is the purchase that is turning me. This is false advertising. You must be held to the same advertising standards as every other merchant.

Solamente el termómetro redondo se puede cambiar a °C, los rectangulares no. Además, al ponerlos todos en un mismo sitio, mostraban variabilidad de 1-2 grados entre ellos. Pedí un reembolso.