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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- TP50 3 Pieces Digital Hygrometer Indoor Thermometer Room Thermometer and Humidity Gauge with Temperature Humidity Monitor (Previously ThermoPro)

- TP50 3 Pieces Digital Hygrometer Indoor Thermometer Room Thermometer and Humidity Gauge with Temperature Humidity Monitor (Previously ThermoPro)

Product ID: 531376419

Details

Age Range (Description)
Adult
Brand
TempPro
Color
White
Display Type
Digital
Included Components
1x Thermometer
Model Name
TP50

💧±2-3% RH precision

⏱️10-sec refresh rate

🌡️±1°F accuracy

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VT11201

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Description

🌿 Stay ahead of your indoor climate game with TempPro TP50 — because comfort is the new luxury.

PRECISION YOU CAN TRUST - High accuracy temperature and humidity readings keep your environment perfectly monitored.
HEALTH COMFORT FOCUSED - Maintains ideal humidity levels to protect skin, reduce allergens, and preserve valuables.
TRACK TRENDS EFFORTLESSLY - High/low records let you compare and optimize your indoor climate over time.
VERSATILE PLACEMENT OPTIONS - Magnetic back and tabletop stand for seamless integration anywhere in your home or office.
REAL TIME ENVIRONMENT UPDATES - Data refreshes every 10 seconds so you never miss a change in air quality.

The TempPro TP50 is a 3-piece digital indoor thermometer and hygrometer set offering ±1°F temperature accuracy and ±2-3% humidity precision with updates every 10 seconds. Featuring high/low record tracking, a magnetic back, and tabletop stand, it ensures versatile placement and continuous monitoring to maintain a healthier, more comfortable home environment.

Specifications

ASIN	B0C4XLLGZ7
Additional Features	High Accuracy
Age Range (Description)	Adult
Age Range Description	Adult
Best Sellers Rank	#6,470 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #23 in Indoor Thermometers
Brand	TempPro
Brand Name	TempPro
Color	White
Customer Reviews	4.6 out of 5 stars 777 Reviews
Display Type	Digital
Included Components	1x Thermometer, 3x AAA Battery
Indoor Outdoor Usage	Indoor
Item Length	3.82 Inches
Manufacturer	TempPro
Model	TP50
Model Name	TP50
Number of Batteries	3 AAA batteries required. (included)
Outer Material	Plastic
Part Number	TP-50-3
Power Source	Battery Powered
Response Time	10 seconds
Reusability	Reusable
Special Feature	High Accuracy
Style Name	Contemporary
Upper Temperature Range	158 Degrees Fahrenheit

Reviews

D**E

12.03.2026

P**E

24.04.2026

F**.

11.03.2026

S**.

29.01.2026

C**L

3.02.2026

E**S

5.02.2026

J**R

2.02.2026

D**I

5.04.2026

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VT11201

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Desertcart purchases this item on your behalf and handles shipping, customs, and support to Vanuatu.

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