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LittleHippo Kelvin Color Changing Night Light, Room Thermometer and Hygrometer (Humidity Monitor) for Nursery, Baby's Bedroom, Child's Room

  • Based on 1,305 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Tuesday, Sep 9
Order within 11 hours and 6 minutes
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Features

  • 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.

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


Best Sellers Rank: #13,264 in Baby (See Top 100 in Baby) #183 in Nursery Night Lights #874 in Night-Lights


#183 in Nursery Night Lights:


#874 in Night-Lights:


Customer Reviews: 4.4 out of 5 stars 1,130 ratings


Brand: LittleHippo


Special Feature: Color Changing, Plug In, Portable


Color: White


Age Range (Description): Baby


Included Components: Adapter


Outer Material: Acrylonitrile Butadiene Styrene


Specification Met: FCC, RoHS


Display Type: Color-changing lights


Connectivity Technology: Usb


Product Care Instructions: Wipe Clean


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


Best Sellers Rank: #11,817 in Baby (See Top 100 in Baby) #130 in Nursery Night Lights


#130 in Nursery Night Lights:


Customer Reviews: 4.4 4.4 out of 5 stars 1,305 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Sep 9

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • 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. ... show more
Reviewed in the United States on March 19, 2018 by D.H

  • 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! ... show more
Reviewed in the United States on February 26, 2025 by Day Gomez

  • 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. ... show more
Reviewed in the United States on November 30, 2018 by Cathleen

  • Almost perfect...
This little gadget has some major potential and is almost perfect. The temperature is so easy to read plus the different lights coordinating with the temperature is genius and makes it so easy for a sleep deprived parent. However...I'm sending mine back for a few reasons. 1. It doesn't have the option of it working on a battery. The cord is also too short. 2. No option of mounting it on a wall. Not even a hole on the back to hang on a simple screw. 3. Biggest problem I had is how bright the lights are. No way of dimming it. Even with the nightlight off, it's still to bright. My 15 month old was super distracted by it and couldn't sleep. I covered it with a burp cloth and still too bright. Also, how amazing would it be if it was Bluetooth compatible and you could just check the temperature from bed? ... show more
Reviewed in the United States on November 30, 2020 by Amazon Customer

  • Super easy and helpful!
I LOVE THIS LITTLE DEVICE!! My husband and I can never agree on the temp in the room/house so one of us is constantly too hot or too cold, pregnancy made it even worse. We plug this is and it tells us immediately the temp in the room and changes colors according to what baby needs. You can even change the temp range if you like or need. It's seriously the easiest, most appreciated gift we got at our baby shower! We loved it so much we bought a second one so there's one in the bedroom/nursery and one in our living room. Highly recommend! ... show more
Reviewed in the United States on June 30, 2019 by Calley

  • Nursery must have
I love this! It's super cute in the nursery and very obvious to use, when I walk in the room I know right away if it's too cold or too warm and can dress my baby appropriately. One less thing to worry about. I recommend keeping it away from your crib though, the blue light when it's cold is very bright, the orange and red aren't as bad. It does light the corner of the room pretty well but I don't think enough to count it as a night light. ... show more
Reviewed in the United States on April 22, 2023 by Taylor Sysol

  • Great little thermometer!
This is such a cute little thermometer. I purchased it to go in my daughter’s 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 won’t be as disruptive. ... show more
Reviewed in the United States on October 9, 2024 by APP

  • Night light with temperature reading
Okay, this is pretty cool and clever to check the room temperature. I had a hard time reading the temperature without bringing it close to the night light or turning on the bright light in the baby’s room. This provides a quick way by seeing the color changes what temperate range the room is. It’ll be better if this was rechargeable and I don’t have to have it plugged in. Also there’s no way to turn off the light. ... show more
Reviewed in the United States on June 23, 2025 by Cheesy

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