Has anyone had this long enough to know if the battery will last at least one year?

I've had mine for over a year and it's still going... I've had other battery powered products from a seller and the batteries lasted only a few weeks... It's because the batteries have been installed in that device since the assembly line...If by chance they don't put the little plastic strip between the negative side and the device, the batteries will go bad...

Any way to calibrate temperature?

Calibrate means that you adjust your measuring tool (e.g. thermometer, hygrometer, speedometer, etc.) to give a known value when it's measuring (detecting) that value; you usually do this by adjusting a screw or other mechanism that results in the unit showing a 'reading', or measurement, of that known value on its display or output. This unit does NOT have any calibration adjustment.

What do the low and high represent...is it for the last 24 hours?

As several others have said, it's the HIGH & LOW since it was reset. To reset, HOLD the button marked F/C until it resets. Each time that button is pressed, the displayed temperature changes between Fahrenheit and Celsius.

In China. I bought 3 of them, but don't find them useful. The setting for humid, dry, comfort is inaccurate for a relativity level reading in a home environment. At least in the Midwest region. They say 49% is dry when in fact it's too much for a home to carry, at least in the winter colder temps.

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ThermoPro TP50 Digital Hygrometer Indoor Thermometer Room Thermometer and Humidity Gauge with Temperature Humidity Monitor

ThermoPro TP50 Digital Hygrometer Indoor Thermometer Room Thermometer and Humidity Gauge with Temperature Humidity Monitor

4.6/5

Product ID: 31915677

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Details

Color
White
Brand
ThermoPro
Product Dimensions
0.84"W x
Item Weight
2.72 Ounces
Battery Description
AAA

💧±2~3% RH precision

⏱️10-sec refresh rate

🌡️±1°F accuracy

Description

🌿 Stay ahead of your environment with precision comfort monitoring!

REAL TIME UPDATES - Data refreshes every 10 seconds—never miss a change in your space.
SMART SLEEK DESIGN - Compact tabletop or magnetic mount with °F/°C toggle—fits your modern lifestyle.
VERSATILE MULTI USE - Perfect for home, greenhouse, fridge, humidor, or reptile habitat monitoring.
PRECISION YOU CAN TRUST - High accuracy readings ensure your environment is always optimized.
INSTANT AIR COMFORT INSIGHT - Humidity level icons (DRY/COMFORT/WET) keep you effortlessly in the know.

The ThermoPro TP50 is a compact digital hygrometer and thermometer delivering ±1°F temperature and ±2~3% humidity accuracy. Featuring a quick 10-second refresh rate and intuitive air comfort icons, it ensures you maintain the ideal indoor climate. Its versatile design supports tabletop or magnetic mounting, making it perfect for homes, greenhouses, refrigerators, and more—empowering you to create healthier, smarter living spaces.

Specifications

Color	White
Brand	ThermoPro
Product Dimensions	0.84"W x 2.62"H
Item Weight	2.72 Ounces
Battery Description	AAA
Mounting Type	Tabletop
Upper Temperature Rating	158 Degrees Fahrenheit
Voltage	1.5 Volts
Temperature Accuracy	1 Degrees Fahrenheit
Manufacturer	ThermoPro
Global Trade Identification Number	06927082801612
Part Number	ThermoPro
Item Weight	2.72 ounces
Item model number	Digital thermometer hygrometer TP50
Batteries	1 AAA batteries required. (included)
Is Discontinued By Manufacturer	No
Size	Classic
Style	Indoor Thermometer & Hygrometer
Material	Plastic
Shape	Rectangular
Power Source	Battery Powered
Item Package Quantity	1
Number Of Pieces	1
Measurement Accuracy	1
Display Style	Digital
Special Features	High accuracy 2~3%RH and ±1°F
Included Components	Temperature and Humidity Monitor,One AAA battery,User Manual
Batteries Included?	Yes
Batteries Required?	Yes
Battery Cell Type	Zinc Carbon
Description Pile	AAA

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Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

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Good experience, but the tracking updates could be better.

2 months ago

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TrustScore 4.5 | 7,300+ reviews

Ravi S.

I loved the variety of products available. Will definitely shop again.

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The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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ThermoPro TP50 Digital Hygrometer Indoor Thermometer Room Thermometer and Humidity Gauge with Temperature Humidity Monitor

Details

Description

Specifications

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