4 Pack Hygrometer Thermometer Digital Humidity Meter Indoor/Outdoor Humidity Monitor Reptile Thermometer for Greenhouse Humidors Terrarium Jars, Fahrenheit (℉) /Celsius(℃) (4)
$10.87
Price: $10.87
(as of Oct 14, 2025 18:44:48 UTC – Details)
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JEDEW is committed to creating a comfortable and healthy home environment by providing high quality products. Focus on humidity and temperature.
JEDEW is committed to providing each customer with the highest standard.
Mini digital thermo-hygrometer
JEDEW
Creat a comfortable and healthy home environment.
Is Discontinued By Manufacturer : No
Product Dimensions : 1.77 x 1.77 x 0.59 inches; 2.47 ounces
Item model number : ROUND
Batteries : 4 LR44 batteries required. (included)
Date First Available : August 22, 2018
Manufacturer : JEDEW
ASIN : B07GR67G1M
Best Sellers Rank: #541 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #2 in Humidifier Humidity Meters
Customer Reviews: 4.4 4.4 out of 5 stars 12,962 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
1-【Widely Application】The digital LCD monitor can be used in home, office, garage, schools, hotels, laboratories, kindergartens, aquaculture, instrument workshop, warehouse, reptile tank terrarium, aquarium, hermit crab habitat, and other places where temperature/humidity measurement is required.
2-【Fast Response】Built in sensitive sensor that measures every 10 seconds with 24 sensitive VENTS to provide updated and accurate readings, wide measuring range: work temperature from 0℃ to 70℃(+32°F ~ +158°F), work humidity from 10% to 99% RH.
3-【Healthy Living Monitor】This portable hygrometer thermometer Measures Indoor humidity and temperature in time, help to adjust the humidifier, dehumidifier settings and humidistats, great for monitoring family’s living conditions and health by preventing colds, dry skin, great for your work and life.
4-【Fahrenheit/Celsius】The Thermometer Humidity Monitor can achieve the mutual conversion between Fahrenheit (°F) and Celsius (°C). Temperature measurement accuracy: ±1°F, Humidity measurement accuracy: ±3%RH.
5-【Long Service Life】This Hygrometer Thermometer Powered by one LR44 button cell and one backup button cell. Each LR44 button cell’s working time up to 10 months. Any problem in use, We will definitely Provide you a satisfactory solution.
Customers say
Customers find these hygrometers work well, particularly in humidors, and appreciate their clear display that can be read from any angle. The devices come with extra batteries that last forever, and customers like their compact size, with one noting they’re perfect for cigar cooler drawers. While customers consider them good value and well-made, there are mixed opinions about their accuracy, with some finding them reasonably accurate while others report inaccurate readings.
13 reviews for 4 Pack Hygrometer Thermometer Digital Humidity Meter Indoor/Outdoor Humidity Monitor Reptile Thermometer for Greenhouse Humidors Terrarium Jars, Fahrenheit (℉) /Celsius(℃) (4)
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$10.87
Amazon Customer –
5 Years Old and Still Rocking
I must have bought these 4-5 years ago and they keep chugging. They even came with replacement batteries (which have been needed, but I haven’t had to buy any yet). The double sided tape they come with isn’t the best, but they seem fairly accurate and are easy to read. Great buy for the price I got them.
Stephan –
Simple and effective humidity and temperature monitors
These are useful, we just moved house and trying to figure out our room temperatures, and humidity. These are clear and easy to read, they stick to the wall very easily we put ours just under the light switches maybe next time Iâll get the white colour so that they blend in a bit more but the point is that they work really well.
James Thorpe –
Fantastic but literally stinks!
They work well, are easy to use and read, and accurately display the temperature. I appreciate their small size and their price. My only qualms are that they are not bright, and to change the battery you have to take the sticky off. On top of that they stink SO BAD when you open them! And it doesn’t go away!
Jennifer T –
Still Working great after a year of use!!
I have had these well over a year now, I had mold in my house and needed to keep humidity down and these were perfect for keeping track of that! They have a sticky thing on the back you can stick to anywhere (still there over a year) Easy to read and seen to be great quality because they are still going strong and holding up!! Great tool to have in your home for a great price!
Mark Reno –
Compact and Convenient, but Slight Variations in Accuracy
I purchased this 2-pack of mini digital hygrometer thermometers over a year ago to monitor the humidity and temperature in my reptile terrarium and greenhouse. The compact size is perfect for placing in small spaces without being obtrusive. The LCD display is clear and easy to read, and I appreciate the option to switch between Fahrenheit and Celsius.The devices update readings every 10 seconds, which is helpful for keeping track of environmental changes. And since it came with 2 of them I placed the other in the room where my terrarium was, to monitor the rooms temperature.Overall, these hygrometers offer good value for the price, especially if you need multiple units for different areas. Just keep in mind that there may be minor discrepancies in readings.
ShoppingMomma –
Not great but not expensive
One of them did not work right off because of a dead battery. The stickers that come with are also pretty unreliable.
Jason Sneed –
Perfect for budget friendly setups.
Consistent temps. Great product.Follow the instructions. Give them time to calibrate before jumping the gun and thinking they are not consistent!Build quality is great. Simple, and effective. I use these on my glass tanks, and the adhesive works just fine. Havenât had any issue of them falling off.Definitely recommend for a budget hygrometer setup.
Top Ranked Reviewer –
Small and fairly accurate. Versatile
These were suprisingly pretty accurate. I’m quite pleased. You can put a piece of one of those soft flexable magnets on the back of them and stick them anywhere. They are made to go down in a hole of the correct size and be flush mounted. Knowing that, they have 2 or 3 bump springs on the sides which snap out once you get it pushed into a hole deeper than the placement of the spring arms (bump springs (because they are like little bumps on the sides which push out to hold it in the hole, it you use it that way)).
JRTLLOYD –
These are fine little devices for the price, but when they arrived, one had a completely dead battery and the other had no battery at all. Other than that they’re OK for the price.
Antonio E Castillo M –
Funcionan bien y están bien calibrados. Las mediciones son iguales a mis sensores de temperatura externos. Buen precio. Ãtiles para cajas de secado de filamento
Sergio –
Otimo produtobonitinhochegou bem embalado, vem com 2 baterias
Achwas –
Mit dem entsprechenden Ausdruck für das AMS fügt es sich dort sehr gut ein und gibt wichtige Informationen über die Temperatur und die Luftfeuchtigkeit im AMS.Prima!
K.Jayaram –
I have kept both these pieces in my camera bag to constantly monitor the humidity and temperature as I often keep travelling.