Editor’s note: Originally published April 2018. Reviewed and updated November 2026. Some models mentioned here may have been updated or discontinued since; check current availability and specifications before buying.
The AcuRite 00613 is a small, budget-friendly indoor humidity monitor and thermometer in one. It shows the current humidity with a simple low/good/high icon, plus the indoor temperature and the day’s high and low. If you’re seeing mold on walls or furniture, or your home just feels damp, it’s an easy way to find out what’s going on.
What the AcuRite 00613 does
Humidity affects comfort, your home and even how you feel day to day. The 00613 combines a humidity gauge with a thermometer on one display. A comfort icon tells you at a glance whether humidity is low, good or too high, and the temperature reads in either Fahrenheit or Celsius.
Listed specifications
- Indoor humidity with low/good/high comfort icon
- Current indoor temperature plus daily high and low
- Fahrenheit or Celsius
- Humidity accuracy listed within 5%, most accurate between 20% and 80% humidity
- Magnetic back and pop-out tabletop stand
- Powered by one AA battery, with listed battery life of about 8 to 9 months
Convenient to use
A magnet on the back lets you stick it to the fridge or any metal surface, and a pop-out stand makes it easy to read on a table or shelf. It’s small enough to fit in a pocket, so you can carry it from room to room or take it with you.
Because it’s inexpensive, you can put one in several rooms. Conditions in the living room may be fine while a nursery or basement is not, so a second monitor can be useful. Tracking humidity and temperature over time may also help you see whether allergies or other symptoms seem linked to conditions at home.
The trade-off is a display with no backlight, so it’s hard to read in dim rooms. For tips on getting reliable readings from any home thermometer, see how to calibrate a thermometer.
Pros
- Humidity gauge and thermometer in one
- Magnetic back for the fridge or other metal surfaces
- Simple comfort icon shows when humidity is too low, good or too high
- Pop-out stand for tables
- Small and budget-friendly enough for several rooms
Cons
- AA battery needs replacing roughly every 8 to 9 months
- No backlight, so hard to read in dim areas
- Some owners have reported temperature readings off by several degrees
- Humidity readings can occasionally be erratic
Bottom line
The AcuRite 00613 is a simple, low-cost way to keep an eye on indoor humidity and temperature, especially if you want one in several rooms. If you also want outdoor readings, look at our AcuRite indoor/outdoor thermometer guide or the AcuRite 00589 weather station review.
FAQ
What battery does the AcuRite 00613 use?
One AA battery, which the original listing said should last about 8 to 9 months.
Does the AcuRite 00613 have a backlight?
No, so it can be hard to read in dim areas.
