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Geevon digital thermometer hygrometers are rigorously optimized to provide accurate results possible while still providing a simplified comfortable user experience.
- Package Contents:
- 1. 3*Display Unit
- 2. Instructions Manual
- 3. 3* 3A battery
Geevon 8666 Quality Indoor Digital Temperature Humidity Monitor for Your Comfortable Life!
Geevon 8666 digital thermometer hygrometer is strictly optimized and accurately measured to provide accurate results and provide the most satisfying experience for users. Perfect home thermometer to keep your family's living conditions optimal.
- Temperature
- 1、Indoor temperature -40°C ~ 70°C (-40°F ~ 158°F),display -40°C when below -40°C and display 70°C when higher than 70°C.
- 2、Temperature measurement time: every 10 seconds.
- 3、Temperature accuracy: -40°F ~ -4°F, 140°F~158°F: ± 7.2°F； -4°F ~ 32°F, 122°F~140°F : ± 3.6°F； 32°F ~122°F : ± 1°F
- Humidity
- 1、Indoor humidity range: 10%-99%,display 10% when below 10% and display 99% when higher than 99%.
- 2、Humidity accuracy: +/- 5 % RH (@25°C , 20%RH to 90%RH)"
Fast Response & High Accuracy
Room thermometer and humidity gauge indoor refreshes every 10 seconds to provide updated and accurate readings. Temperature accurancy range around ± 1°F（32°F ~122°F）. Humidity accurancy range around ±5%RH.
Comfort Level Indicator
Always be aware of the changes in your home with just a quick glance at the comfort level icon. Know when to dehumidify or humidify now!Great for monitoring family's living conditions and health by preventing colds, dry skin, asthma, allergy, mold.
Long Battery Life
Indoor temperature and humidity monitor is powered by one powerful and commonly found 3A battery that provides 18-24 months of battery life. When you do need to change the battery, it’s easily replaceable.
3 Placement Methods
Magnetic rear bracket
The rear magnet can be attached to the refrigerator or any metal surface
Suspension hole design
Wall thermometer indoor can be hung on the wall with nails
Table stand
The humidity monitor indicator includes a table stand which keeps the unit upright for easy readings
Steve
2025-08-30 15:19:05
These are great to let you monitor temps throughout the home and are small enough to fit anywhere.
Dzjeuls
2025-08-28 16:24:33
This is the second time I have bought this brand and I sought it out again when I needed another room temperature confirmation. It is easy to set up; easy to read; and will easily adapt if you move it to a different room.
65andover
2025-07-26 12:17:37
I got these to measure the temperature and humidity across the house. Wanted to see how they varied from one end of the house to the other. When I first opened them I put all three next to the house thermostat to see if they would all be within the same range and didn’t vary much. It took about an hour after I started them for all of them to get in sync with each other and the thermostat. They were within about one degree of the thermostat. I don’t have a way of checking humidity independently to check the accuracy.I’ve been monitoring them for a few weeks now and moving them between the different rooms to try to make sure they are all reporting correctly. So far they seem to be working well. And they have helped me to adjust my forced air to ensure even heat and humidity around the house.They do have a magnet but it is not very strong and does not hold the device up on a metal surface, it slides down. You can see in the pictures its size compared to a nickel. It doesn't advertise having a backlit, so if you need to read in the dark you will need light.For the money and what I use it for I’m happy with it.
Frank
2025-06-13 12:53:44
These thermometers have lasted for over a year without replacing the batteries. They are pretty accurate.
John
2025-05-29 10:39:41
I got this 3 piece set of thermometers to monitor how well the heat was spreading around my house after getting a split mini heatac unit. I got thsee specifically because they run on AAA batteries for which I have a stash of rechargables that I use for all my gadgets - I'm not a fan of the watch batterys that most of the little digital thermometers use because they aren't rehargeable, cost way too much, are a pain to change and don't last near as long as a real battery.The little stand on the back of the thermometers works great for setting on dressers and tables, and the face is big enough so I can easily see the one that I set outside my kitchen window to monitor the temperature outside.The only small issue I have with them is the background is kind of dark green color which it makes the black numerals a little hard to read without having pretty good light on them. It would have been nice if they could have made the back color white but for the price of these they work fine for what I use them for.Having more than one saved me some money when I velcro-ed one to a cathederal cieling in order to tell the difference in temperature between the cieling and the floor to decide if I needed to buy a cieling fan to blow wasted hot air down to the floor or not. Turns out the temperature of the air on the cieling was almost the same as the floor so I skipped buying and installing a fan.
Bedboop
2025-04-19 12:22:17
Good product for the price. We wanted something to monitor the temp in different rooms in our home. These were very cost effective for this purpose. Small and fit just about anywhere in your room. For the size they are very easy to read.
Jim
2025-03-31 17:20:04
Like seeing temp and humidity in a few places
Kayla Brooks
2025-03-12 16:55:45
I have an old apartment that struggles to regulate temp and moisture. Have one of these in my bedroom, one in my living room and one in my bathroom. The other two are going strong and seem accurate, but the bathroom one died already (ordered in January, it’s now August) and after opening it to replace the battery I see the coil appears to have rusted or something. Battery appears fine and replacing the battery didn’t turn it back on, so I’m assuming maybe it couldn’t handle the humidity of a bathroom. Unfortunate since that’s a useful place to monitor humidity.
Horn
2025-02-05 12:36:58
Klein fein und funktioniert einmal frei .
Customer
2025-01-28 10:39:04
Great value product
Ina Annie
2025-01-20 15:54:24
Preis- Leistung ist okay, sehr schnelle Lieferung........leider ist die Temperatur Anzeige nur in fahrenheit........kann man aber umrechnen ( Anzeige minus 32 und durch 1,8)
MultiUser
2024-11-26 18:15:25
Purchased this 2 pack with the intent of handing off my original larger unit to my father as his identical unit was no longer accurate. As you can see I lucked out with this 2 pack in that they both read exactly the same. Their numbers are ever so slightly different than my original unit but I believe them to be more accurate in my basement space.My one and only complaint with these is the magnet. It is weak. Very weak. Like, struggle to support the weight of the tiny device when attached to a fridge weak. I don't trust the magnet at all. The fold out stand however is great. Easy to open and close and very sturdy. And I appreciate the barebones info this model provides over the abundance of info that fills the screen of my original device.
Dr. RG Wilson
2024-11-25 11:11:29
Package arrived well on time, was well packed and easy to set up. Basically, it does everything I wanted it to do and I can now monitor the temperature of different locations in my home. It has to have five stars because I cannot find any faults with the item, sender, or delivery. Thank you to all concerned.
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