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.

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.

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.

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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AcuRite 00325 Indoor Thermometer & Hygrometer with Humidity Gauge, Black, 0.3, Version

Product ID: 169030583

Details

Battery Description
AA
Brand
AcuRite
Colour
As shown in
Item Weight
86 g
Lower Temperature Rating
32 Degrees

📊Daily high/low memory tracking

🧲Magnetic backing for easy mount

🌡️0.5°F accuracy temp sensor

Description

🌡️ Stay ahead of comfort—know your air, own your space!

DUAL UNIT DISPLAY - Switch seamlessly between Celsius and Fahrenheit to suit your preference or professional needs.
PRECISION CLIMATE CONTROL - Accurately monitors indoor temperature from 32°F to 122°F (0°C to 50°C) with ±0.5°F precision for your perfect comfort zone.
COMPACT ENERGY EFFICIENT - Lightweight design powered by a single AA battery (not included) ensures continuous monitoring without bulky setups.
EFFORTLESS PLACEMENT ANYWHERE - Integrated magnetic backing lets you mount the device on any metal surface—fridge, filing cabinet, or workspace—without hassle.
HUMIDITY INSIGHTS AT A GLANCE - Instantly know your home's humidity status with a clear comfort icon indicating low, high, or ideal levels.

The AcuRite 00325 Indoor Thermometer & Hygrometer is a sleek, black device designed for precise indoor climate monitoring. It measures temperature with ±0.5°F accuracy and tracks humidity levels from 20% to 95% RH, displaying daily highs and lows. Featuring a magnetic backing for versatile placement and a user-friendly comfort icon, it supports both Celsius and Fahrenheit units. Powered by a single AA battery, this compact tool is perfect for professionals seeking effortless, reliable environmental insights.

Specifications

ASIN	B004K8RF10
Battery Description	AA
Best Sellers Rank	#87,452 in Garden & Outdoors ( See Top 100 in Garden & Outdoors ) #131 in Indoor Thermometers
Brand Name	AcuRite
Colour	As shown in the image
Country of Origin	USA
Customer Reviews	4.6 4.6 out of 5 stars (7,342)
Global Trade Identification Number	00072397003254
Included Components	1
Item Weight	86 g
Lower Temperature Rating	32 Degrees Fahrenheit
Manufacturer	AcuRite
Model Number	00325
Mounting Type	Surface Mount
Number of Items	1
Number of Packs	1
Part Number	00325
Temperature Accuracy	0.5
UPC	885514226845 776135046373 885846255520 885469659033 723434309821 072397003254 737508178770 737946424859 707568286845 043941097098 885321675393 885429360504 885609956640 885220160440 885569298422 745176863300 732233466956
Unit Count	1.0 Count
Upper Temperature Rating	50 Degrees Celsius
Voltage	3 Volts

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