LittleHippo Kelvin Color Changing Night Light, Room Thermometer and Hygrometer (Humidity Monitor) for Nursery, Baby’s Bedroom, Child’s Room
$ 27.99
Price: $27.99
(as of Mar 18, 2025 01:20:30 UTC – Details)
From the brand
Sleep better. Parent easier.
Sleep better. Parent easier.
We are a USA based company with a mission to create beautiful, modern children’s products. Our goal is to design products that customers wouldn’t necessarily think were children’s products at first glance, yet still bring delight to children everywhere. Most importantly, we set out to build high quality products – while keeping them affordable.
With LittleHippo products, we hope to make parenthood just a little bit easier.
How did we get our start?
In 2016, our family saw a need for well-made children’s electronic products. After 2 years in development, we launched our first idea on Kickstarter and raised 300% our funding goal!
What makes our products unique?
We create beautiful, high quality yet functional AND affordable children’s products. We are a USA based company that prioritizes service and satisfaction.
Why do we love what we do?
As parents ourselves, we are always looking for ways to make the job of parenting easier. We love hearing from fellow parents who have had success with our products!
Is Discontinued By Manufacturer : No
Package Dimensions : 5.24 x 5.16 x 4.37 inches; 5.64 ounces
Item model number : KHTH-01
Date First Available : January 12, 2018
Manufacturer : LittleHippo
ASIN : B078Z4JCJL
Country of Origin : China
COLORFUL ROOM TEMPERATURE MONITORING: KELVIN changes colors depending on whether the room temperature is too hot, too cold or just right! Red for too hot, Amber for just right, and Blue for too cold.
HUMIDITY CONTROL FOR HEALTHY LIVING: Keep your family’s health in check with KELVIN’s built-in hygrometer. This digital humidity monitor ensures you’re always aware of your room’s moisture levels, guarding against congestion, stuffy noses, and dryness. Maintain an ideal indoor atmosphere effortlessly.
PERSONALIZED COMFORT CONTROL: With KELVIN, effortlessly align the temperature range to match your physician’s guidance through its user-friendly interface, putting your family’s comfort squarely within your control.
FROM NURSERY TO NIGHT LIGHT: A beloved choice on baby registries, KELVIN is an indispensable tool for monitoring temperature and humidity during those precious early months. As your child grows, KELVIN seamlessly transforms into a comforting night light, ensuring a soothing atmosphere in the nursery or bedroom.
DURABLE AND SECURE: Rest easy knowing that KELVIN by LittleHippo is built to last with its robust, child-friendly construction. It holds a series of safety approvals, ensuring the utmost protection for your little ones.
Customers say
Customers find the thermometer accurate and convenient for monitoring room temperature. They like its simple display and functionality, finding it easy to use and set up. The design is cute and compact, making it great as a nightlight for a baby’s room. Customers appreciate how easy it is to read the temperature by just glancing in the room. The light itself is perfect and subtle, with enough brightness that they can tell the temperature.
AI-generated from the text of customer reviews
13 reviews for LittleHippo Kelvin Color Changing Night Light, Room Thermometer and Hygrometer (Humidity Monitor) for Nursery, Baby’s Bedroom, Child’s Room
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Day Gomez –
Great product and amazing customer service
The cutest and one of the most useful little thing in my son’s nursery. The size is perfect, the colors are great and works great as a nightlight as well! My husband and I love being able to know my son’s room temperature just looking at Kelvin and checking on its color. I also must say a huge thanks to Stephanie for the best customer service I ever had!
APP –
Great little thermometer!
This is such a cute little thermometer. I purchased it to go in my daughterâs nursery. It works great and is super cute. I love that the lights change color based on the temperature. All of these in theory are fantastic until you have it in a pitch black room and the lights are SO BRIGHT. Although I love it I have to look for something that wonât be as disruptive.
S. Griffin –
Great light bad temperature gauge!
I just purchased the Kelvin changing nursery light and I was super excited by its simple design and good overall reviews. The light feature that easily identifies if the room is to cold or to hot is excellent for a quick read on the room very happy with this feature. Now the bad, the thermometer in this device doesnât seem to work.UPDATE… After some continued testing of the Kelvin I have found he thermometer sensor is working. Also the company reached out to me and was more then willing to quickly send me a new unit if I required it. Iâm so happy to say this was not needed but am happy to see this company is so committed to there customers that they will do what they can to resolve any issues. Glad to recommend this product and give it 5 stars.
Cameron Keleher –
Works well and easy to use
This is perfect for what we needed (showing temp and humidity) and I appreciate the color feature as well. I do wish you could adjust the brightness! I also think it would be useful if the color changed only after the temp changes for more than 5 or 10 minutes because if it hovers on the edge of the range, the light flickers between the colors! It can be pretty distracting to see blue / yellow lights coming from the nursery door. I end up turning the light off entirely if the temp isn’t settled in the mid-range.
Leslie –
Wonderful
Exactly what I was looking for! Serves as a night light and the color changing is perfect for when waking up in the middle of the night. Doesnât take too much space from my night stand. Accuracy is spot on compared to other home thermostats. Excellent costumer service when contacting seller!!
D.H –
Adorable, easy to use, works well
Really great night light for a kid’s room. We originally had the gro-egg, but decided to give this one a try for our newest born.The KELVIN is so much better in many ways: 1) it’s cheaper, 2) you can toggle between Fahrenheit and Celsius (which is great since we use F in the US and gro-egg only comes in Celsius), 3) comes with a US plug, 4) you can actually choose your temperature ranges, 5) and it even displays humidity.I did a test to see if the product had accurate reading levels. Temperature showed 1 degree difference compared to my thermostat. Humidity level seems right given that we use a humidifier, although humidity levels can have a much bigger variance than temperature. But as long as it’s within 5%, it’s probably okay.It is more expensive than a regular night light but you’re getting a lot of features, so in my opinion, it’s worth it.
Mario Z –
Inaccurate
Temperature reading is 3-4 degrees off, probably because the reading is at the bottom so it picks up the surface temp as opposed to room temp. It’s also annoying not being able to edit the absolute min and max temps allowed for the range.
Cathleen –
Great value, works well.
Easy to setup, just plug it in and it’s all set to go. The humidity monitor is a nice feature. I bought it because the baby monitor was reading very high temperatures in the nursery so I wanted to make sure it was correct.I really like the soft orange glow when the temp is in the comfortable range. It’s light enough to walk around but not so bright it’s distracting- I like it better than the sound machine/nightlight I have. The colored glow makes it easy to just peek in and make sure the temp is fine.Great product for the money and it’s cute.
HedgieMomma –
We have this in our bedroom and we love it. The light let us know what temperature our room is at all times. This helps us to know how to dress the baby. It seems very close to the right temperature when we compared it – so we rely on it lots. I like that I can roll over in the middle of the night and just see the light and know if our room is too hot or not. It has the digital temperature on the top of it. If you want to read it the light isnât too bright if it bothers you you can always cover it with a light blanket.
Jen –
Love this little guy! Super cute, great nightlight, and piece of mind for me knowing that our baby’s room is at the right temperature with just a glance. Easy to use. Very happy with this purchase.Only issue is that my daughter constantly wants to play with it…..it’s now stationed out of her reach lol!
Amazon Customer –
was a gift and she love it
Jordan belmontes –
no complaints at all serves its purpose & easy to use
Pauline –
Started having issues with the product a month after purchase. The thermometer flashes continually every 9 seconds from yellow to red and vice versa. Went to look at the box to see if thereâs anything re instructions. Long story short the bottom of the box says WARNING CANCER AND REPRODUCTIVE ISSUES. DO NOT BUY THIS PRODUCT AND PUT IT IN YOUR CHILDS ROOM!!!!!!!