Best Indoor Thermometers of 2025

"I received the device the next day and it has been a game changer for monitoring our indoor air quality. I really appreciate the real-time updates that help me manage our air quality, especially during wildfire season."

"After a few days of use, I'm really impressed with its sensitivity. For example, while sanding furniture, it quickly displayed a yellow light indicating moderate particulates, and it returned to green within an hour. This shows how valuable it is for keeping track of air quality changes."

"Using denatured alcohol in the basement led to the monitor immediately showing elevated VOC levels. I opened windows, and within 20 minutes, the air quality improved significantly. I plan to avoid using that chemical indoors in the future!"

"This little device has been incredibly handy! It's compact and gives me accurate readings for both temperature and humidity. I compared it to a more expensive model, and the results were virtually identical. The clarity of the display is a big plus for me, and I love the icon indicator for humidity levels. It’s been great for my living room and my dog's area, ensuring comfort for both of us. Battery life has been impressive, and it’s low-maintenance overall."

"I needed a reliable way to monitor the humidity levels for my Calathea plants, and this device fits the bill perfectly! It's very accurate, and I can see the readings change immediately after I mist my plants. The only downside is that the display doesn't glow in the dark, which makes it tough to see in dim light. Despite that, I'm happy with its functionality."

"I’ve tested this hygrometer in different rooms, and it’s been super easy to use. It gives me accurate readings both indoors and outdoors. The magnetic feature is handy, and the size fits well in my home decor. I appreciate how straightforward it is; it provides just enough information without being overwhelming."

"I got four of these to monitor different room temperatures in my house during the extremes of winter and summer. It's very nice to see which rooms may need extra heat during cold spells and also to evaluate how effective my A/C is in various rooms during summer. Battery life seems very good, and I would definitely get more of these thermometers."

"I've been using the Antonki Room Thermometer for two years now, and I still haven't had to change the battery—definitely a big win! It's super handy for keeping an eye on temperature and humidity in different rooms, showing quick response times. I've got four of them around the house thanks to the magnetic back."

"These Antonki thermometers are just fantastic. They are incredibly legible from quite a distance while still being small. The temperature and humidity readings adjust quickly when moving from one area to another. I will be getting more of these based on the amazing quality of their construction."

"I was advised by my dermatologist to maintain a higher humidity level in my bedroom, so I got this item to keep track myself. It works great right out of the box. I keep it on my nightstand to monitor the room temperature and humidity level. It's very small but large enough to read easily, and I can adjust the temperature from Celsius to Fahrenheit with just a push of a button."

"I initially thought this would be a bigger item, so I was surprised when I received it. However, it’s well assembled and not just a thin housing over a microchip like other versions I've had. It’s worth the little extra I spent, even though I thought it would be tabletop size instead of PS2 memory card sized."

"This thermometer has proven to be very reliable. I placed it in my office since I felt it was warmer than my thermostat indicated, and it confirmed my suspicion. It’s small enough for my desk and has a nice display that’s easy to read. I would definitely recommend it!"

"These little thermometers are fantastic! They came with stickers for easy placement and even included a backup unit. They're small yet readable from a distance, and the humidity feature is super useful for monitoring dryness in my home. Great value for the price!"

"I love how small and versatile these thermometers are. I can place them anywhere, and they all provide consistent readings. They really helped me determine my humidification needs, ultimately saving me money by eliminating the need for an extra humidifier!"

"I bought these to monitor temperatures and humidity in various rooms. They're surprisingly accurate, often within a degree of a known thermometer. The included mounting options are a great bonus, and I appreciate the ability to switch between Celsius and Fahrenheit."

"I found this monitor incredibly easy to set up and it works perfectly! The app is pretty impressive too, providing continuous updates and a graph for temperature and humidity. I initially panicked when my fridge seemed to be malfunctioning, but this thermometer finally put my mind at ease by showing accurate readings!"

"I purchased this for my basement due to high humidity. I realized my dehumidifier had failed, and this device helped me pinpoint the issue. The Bluetooth connection can be a bit tricky sometimes, but overall, it's a cheap and reliable device that I decided to buy a second one for my other location!"

"I really appreciate the design and functionality of this monitor. It provides humidity readings and historical data right to my phone. Its small size makes it easy to place anywhere, and I even used it in my guitar case to track moisture levels!"

"I absolutely love the huge numbers on this thermometer! It's incredibly easy to read from across the room. The touch screen feature is fantastic, allowing me to quickly switch between Celsius and Fahrenheit. The blue LED light is stunning and adds a nice touch. Plus, I found a simple way to mount it without any tools, using double-sided tape. I even use it as a quick light in my closet!"

"The ThermoPro TP55 has been a game changer for me. I never had a hygrometer before, and now I can easily track humidity levels to keep my home comfortable. The large screen is perfect for reading, and I appreciate the touch controls. It's compact yet designed excellently, and I am pleased with its performance over the last couple of months. Truly, it's met all my expectations!"

"I appreciate the compact size of this device and its visible digits. It helps me monitor humidity levels in my apartment, ensuring I can make necessary adjustments. The setup was straightforward, and I find it to be a great value for the price!"

"I absolutely love the ThermoPro TP50 Digital Hygrometers! They are super easy to use, accurate, and reliable. For the price, you really can't get anything better. I use them to monitor indoor humidity and temperature, and they work perfectly. The display is clear, and the size is just right for any room. Highly recommended!"

"This is my second thermometer humidity gauge. The first one is used in my greenhouse and works amazingly. I bought this one to use in my house green room...it's the best thermometer for keeping my house and plants happy!"

"I purchased this to help track the humidity level in my room, as I've bought a humidifier. I knew the air was dry because my skin and eyes were suffering. Turns out, it's only 17% humidity. Pop the supplied battery in and you're done. Simple, no Bluetooth, no app needed, just simplicity. It has a kickstand and a magnet on the back, which is super convenient. Perfect!"

“I appreciate the small size of these hygrometers as they can be placed inconspicuously around my home. The magnet on the back is really helpful, especially for placing one on my refrigerator. The screen is large enough for me to see the display easily.”

“I’m thrilled with how these display both ambient temperature and humidity. Initially, I thought I’d only need one for my desk, but I’ve ended up placing them in my bedroom, office, and kitchen. They refresh every 5 seconds, and the battery life has been impressive so far.”

“After buying a house with an unheated basement, I needed to monitor the temperature for my cats. These hygrometers are fantastic and come at a great price. They help me keep track of the temperature, which recently dropped to -4 degrees.”

"Upon receiving the ThermoPro TP53, I was thrilled! My first thought was, 'Now THAT'S what I'm TALKING ABOUT!' The large display is exceptionally easy to read, and the backlight is just right—not too harsh, not too dim. While I can't precisely measure its accuracy, it seems to match local reports well!"

"I purchased several of these because they provide excellent accuracy. I appreciate the temporary backlight for nighttime use. The size is perfect, and I'm happy with their performance!"

"These devices help me monitor the temperature and humidity in various parts of my home. They are well made and offer a good combination of features. I think they are a great value, especially in the two-pack."