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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TempPro TP50 Digital Hygrometer Indoor Thermometer Room Thermometer

Product ID: 31915677

Details

Age Range (Description)
Adult
Brand
TempPro
Color
White
Display Type
Digital
Included Components
Temperature
Model Name
TempAir CORE

💧2-3% RH precision

⏱️10s refresh rate

🌡️±1°F accuracy

86.85 DT

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Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

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

VERSATILE PLACEMENT - Magnetic back and tabletop stand let you position it anywhere—from fridge to greenhouse.
PRECISION YOU CAN TRUST - High accuracy ±1°F and 2-3% RH keeps your environment perfectly monitored.
TRACK TRENDS LIKE A PRO - High/low records help you analyze and optimize your indoor climate for health and comfort.
SMART WELLNESS INDICATOR - Instantly know if your air is DRY, COMFORT, or WET with intuitive icons.
REAL TIME ENVIRONMENT UPDATES - Data refreshes every 10 seconds so you never miss a change.

The TempPro TP50 Digital Hygrometer is a top-rated indoor thermometer and humidity monitor offering ±1°F temperature accuracy and 2-3% RH precision. With a fast 10-second refresh rate and a wellness indicator that categorizes air quality as DRY, COMFORT, or WET, it’s perfect for homes, offices, greenhouses, and more. Its versatile design includes a magnetic back and tabletop stand, making it easy to place anywhere. Track high and low records to maintain an optimal environment for health and comfort.

Specifications

ASIN	B01H1R0K68
Additional Features	High accuracy 2~3%RH and ±1°F
Age Range Description	Adult
Best Sellers Rank	#34 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #1 in Weather Hygrometers #1 in Indoor Thermometers
Brand Name	TempPro
Color	White
Customer Reviews	4.6 4.6 out of 5 stars (154,982)
Display Type	Digital
Global Trade Identification Number	06927082801612
Included Components	Temperature and Humidity Monitor,One AAA battery,User Manual
Indoor Outdoor Usage	Indoor
Item Length	2.62 inches
Item Type Name	Digital Hygrometer Indoor Thermometer Humidity Monitor with Temperature Humidity Gauge
Item Weight	0.06 kg
Manufacturer	TempPro
Model	TempAir CORE TP-50
Model Name	TempAir CORE TP-50
Number of Batteries	1 A batteries required. (included)
Outer Material	Plastic
Part Number	TP50
Power Source	Aaa Battery （included）
Response Time	2 seconds
Reusability	Rechargeable
Style Name	Indoor Thermometer & Hygrometer
Unit Count	1 Count
Upper Temperature Range	158 °F

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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