Shopping Cart

Your cart is empty.

Your cart is empty.

Homedics HM100 Indoor Humidity Monitor, Easy-Read Hygrometer to Monitor Indoor Air Comfort, Fahrenheit and Celsius, Battery-Operated Room Thermometer for Home

4.9 (3) Write Review
Free shipping on orders over $29.99

$13.76

$ 6 .99 $6.99

In Stock

About this item

  • Gauge Your Comfort: Digital humidity gauge monitors your indoor air to help keep you comfortable; displays humidity between 1% - 95% RH; shows min/max humidity to help monitor air changes
  • Read the Heat: Quickly learn the indoor temperature so you know when it’s time to turn off or turn up the heat; displays temperature between 32°F - 122°F (0°C - 50°C); shows min/max temperature for easy reference
  • Easy to Use: Quickly switch between Fahrenheit or Celsius; large easy-to-read numbers; humidity comfort indicator icon so you know when it’s time to add or remove air moisture
  • Simple to Display: Freestanding design sits neatly and discreetly on a tabletop, shelf, or counter; compact and portable (3 x 1.5 x 4.2 in.); uses 2 “AAA” batteries (not included)
  • What’s in the Box: (1) Homedics HM100 Indoor Humidity Monitor


Help maintain proper indoor humidity and avoid problems associated with dry indoor air with the Homedics HM100 Indoor Humidity Monitor. This gauge monitors and displays the humidity and temperature of your indoor air and includes a humidity comfort indicator so you know when it’s time to make a change. Easy to read and with a compact design that’s perfect for display on a tabletop, counter, or shelf, it’s a great solution to help you breathe healthy air at home.


Gary W. Hager
2025-08-28 11:44:28
Package was recieved five days ago. Love it!!
Mark A. Herman
2025-06-12 12:01:56
Very useful I did not know my air was so dry!!
Tony L.
2025-05-20 12:28:07
I'd like to be able to read the numbers from an angle.
Recommended Products
Inkbird ITH-10 Digital Thermometer and Hygrometer Temperature Humidity Monitor Humidor Guitar Ukulele Mason Jar

$13.99

$ 6 .99 $6.99

4.9
Select Option
2 Pack Mini Digital Hygrometer Thermometer Gauge, Indoor Outdoor Temperature Humidity Meter for Greenhouse Humidors Incubators Reptile Terrarium Jars, Fahrenheit (℉) or Celsius(℃) (2)

$6.91

$ 2 .99 $2.99

5.0
Select Option
Oumefar Digital Multifunctional LCD Grain Meter Water Content Analyzer Smart Sensor Use Probe Humidity Tester for Wheat Corn Rice Bean Peanut Soybean(No Batteries

$27.19

$ 11 .99 $11.99

4.9
Select Option
REPTI ZOO Reptile Terrariums Digital Max Min Thermometer Hygrometer With Probes Fit for Reptile Tanks Vivariums Brooders and Incubators, Multiple Mounting Options

$14.99

$ 7 .99 $7.99

4.4
Select Option
Honeywell HHM10B Humidity Monitor

$16.99

$ 6 .99 $6.99

4.6
Select Option
Amprobe - 3311871 TH-1 Compact Probe Style Relative Humidity Meter

$104.46

$ 42 .99 $42.99

4.4
Select Option
Digital Humidity Controller Outlet Plug 120v 15A Humidistat Countdown Control Switch for Greenhouse Reptile Bathroom Vent Fan Humidifier Dehumidifier

$35.99

$ 17 .99 $17.99

4.8
Select Option
Digital Temperature Humidity Meter, Thermometer Hygrometer with Ambient Dew Point and Wet Bulb Temperature Indoor and Outdoor, Data Logger with Min/Max Hold, LCD Backlight, PT6508

$54.99

$ 23 .99 $23.99

5.0
Select Option