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 TempAir Digital Hygrometer Indoor Thermometer Room Thermometer

Product ID: 138292020

Details

Battery Description
Alkaline
Brand
TempPro
Color
White
Item Weight
2.72 ounces
Product Dimensions
2.6"W x 3.1"H

💧±2-3% RH precision

⏱️10s refresh rate

🌡️±1°F accuracy

RM181

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Description

🌿 Elevate your space with precision comfort—because your air deserves VIP treatment.

REAL TIME UPDATES - Data refreshes every 10 seconds so you’re always ahead of changing conditions.
VERSATILE STYLISH - Magnetic back and tabletop stand fit seamlessly anywhere—from fridge to greenhouse to office.
PRECISION YOU CAN TRUST - High accuracy readings with ±1°F and ±2-3% RH keep your environment perfectly monitored.
INSTANT WELLNESS INSIGHT - Humidity icons show DRY/COMFORT/WET at a glance—never miss your ideal air quality.
TRACK TRENDS EFFORTLESSLY - High/low records let you compare and optimize your home’s temperature and humidity over time.

The TempPro TempAir Digital Hygrometer is a top-rated indoor thermometer and humidity monitor delivering ±1°F temperature accuracy and ±2-3% relative humidity precision. With a quick 10-second refresh rate and intuitive DRY/COMFORT/WET wellness icons, it empowers professionals to maintain optimal indoor environments. Its versatile design includes a magnetic back and tabletop stand, making it perfect for homes, offices, greenhouses, and more.

Specifications

ASIN	B07R3YC1BC
Battery Description	Alkaline
Best Sellers Rank	#39 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 (155,382)
Included Components	Temperature and Humidity Monitor,AAA battery,User Manual
Item Dimensions W x H	2.6"W x 3.1"H
Item Highlight	Humidity Meter Humidity Gauge with Temperature Humidity Monitor for House Office Celler Kitchen Greenhouse RV, 2 Pack
Item Length	2.62 inches
Item Weight	2.72 ounces
Manufacturer	TempPro
Model	TempAir CORE TP-50-2
Mounting Type	Tabletop
Number of Items	2
Operating Humidity	10% ~ 99%
Part Number	TP50-2
Temperature Accuracy	±1 °F
Temperature Reading Accuracy	plus_minus_1_degree_fahrenheit
Unit Count	2 Count
Upper Temperature Range	158 °F
Voltage	3 volts

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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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TrustScore 4.5 | 7,300+ reviews

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RM181

Duties & taxes included

In stock

Sold byAmazon MalaysiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

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

Secure transaction

ProDesertcart PRO

Fast, free shipping, member pricing & priority support.

Join PRO →

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TrustScore 4.5 | 7,300+ reviews

Ali H.

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

1 day ago

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Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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