One AA alkaline battery, ideal. Size is one of most commonly available. Lasts longer than AAA. Many similar portable digital humidity-temperature devices use smaller button batteries, which are less available and more problematic to replace correctly.

AcuRite00325 Home Comfort Monitor Black

Q: I wonder why it shows only even numbers for temperature. I've seen the same complaint by others. I put a fresh Eveready alkaline battery, same thing.

I have 4 units of the AcuRite 00325 thermometer and not a one ever shows even numbers for Fahrenheit temperatures, e.g., 72, 68. They only show odd numbers, e.g., 73, 75, 77, 79, 81. I've never set them to Celsius.

Q: Does it display historically highs and lows, or only from the last day or so?

It resets every 24 hours from when you put in the battery. I deliberately pulled the battery one night so that the data would reset for each day when I wanted it to.

Q: I'm thinking of using this hygrometer to keep track of the humidity in my acoustic guitar's case. Do you think it would work well for this purpose?

I keep one in my guitar case, one in my banjo case, and one in the room I play music in (for when the instruments are not in a case). You may have to play with the geometry a slight bit to find the best place to put it in the instrument case but they work well for that purpose.

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Product ID: 257566467

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Details

Colour
Black
Brand
AcuRite
Product dimensions
6.4W x 7.6H
Item weight
0.19 Pounds
Battery description
Alkaline

📊Daily high/low tracking

🧲Magnetic & tabletop versatile

🌡️Fast, accurate temp readings

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Description

🌿 Stay in the comfort zone—know your air, own your space!

VERSATILE PLACEMENT - Sleek design with a magnetic back lets you place it anywhere—from fridge to desk.
HUMIDITY COMFORT ICON - Instantly know if your indoor air quality hits the perfect comfort zone.
PRECISION YOU CAN TRUST - Get quick, reliable temperature and humidity data to optimize your home environment.
CLEAR AT A GLANCE DISPLAY - Minimalist digital screen shows current conditions without any guesswork.
TRACK YOUR ENVIRONMENT TRENDS - Monitor daily highs and lows to stay ahead of seasonal changes and maintain comfort.

The AcuRite 00325 Home Comfort Monitor delivers fast, accurate temperature and humidity readings with a sleek, versatile design. Featuring a magnetic back and tabletop option, it fits seamlessly into any room. Its easy-to-read display includes a humidity comfort icon and tracks daily high and low indoor conditions, empowering you to maintain optimal home comfort effortlessly.

Specifications

Color	Black
Item Weight	3.04 ounces
Item Dimensions W x H	2.5"W x 3"H
Operating Humidity	20-95 percent RH
Temperature Accuracy	1 degree Celsius
Voltage	3 Volts
Mounting Type	Tabletop
Battery Type	Alkaline

Have a Question? See What Others Asked

I wonder why it shows only even numbers for temperature. I've seen the same complaint by others. I put a fresh Eveready alkaline battery, same thing.

What size batteries?

Does it display historically highs and lows, or only from the last day or so?

I'm thinking of using this hygrometer to keep track of the humidity in my acoustic guitar's case. Do you think it would work well for this purpose?

Common Questions

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