First load the sensor battery, and then install the main unit battery/power supply.

How do I install the sensor?

A. Vertically at least 6 feet above the ground. B. There is good air flow and ventilation around the sensor. C. Direct sunlight will make the reading higher, so the shade on the north and south side is best. D. Keep it away from heat sources.

Why do "dashes" appear?

A. Walls, glass windows, stucco walls, and large metal objects will block signal transmission and shorten the distance. B. Radio, cable, wire and other interference signal transmission.

What to do when a "dash" appears?

A. Place the host and sensor together and remove all batteries. B. Place ew alkaline batteries in turn into the sensor-host. C. Observe whether the LED of the sensor flashes every 31s. D. After re-connection, fix it for 15m and then replace it.

How to test accuracy?

A. Bring the sensor indoors, place it side by side with the host for 2h. B. Compare the different readings, temp, humidity. C. If the sensor reads correctly, try another location outdoors. D. Donot compare readings with weather recording stations.

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Indoor Outdoor Thermometer Hygrometer Wireless Weather Station

Product ID: 389826016

Details

Brand
U UNNI
Color
White+Grey
Connectivity Technology
WIRELESS
Included Components
1 x Hygrometer
Number of Batteries
3 AAA
Power Source
Battery

💡Backlit easy-read display

📶330ft wireless range

🌡️±0.5ºF precision temp sensor

$41.91

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Description

🌦️ Stay ahead of the weather curve—because your comfort deserves precision and style.

USER CENTRIC DESIGN - Large, bold LCD with a 10-second backlight and versatile tabletop or wall-mount options for quick, anytime visibility—even in the dark.
SWISS PRECISION SENSING - Experience ultra-accurate temperature and humidity readings with a Swiss-made Sensirion sensor, ensuring your environment is always perfectly monitored.
COMPREHENSIVE CLIMATE INSIGHTS - Beyond basic readings—track heat index, dew point, and mold risk to proactively protect your home and health.
RELIABLE READY FOR EXPANSION - Includes one-year warranty and supports up to 3 sensors on different channels, so you can scale your monitoring as your lifestyle demands.
SEAMLESS WIRELESS CONNECTIVITY - Patented tech delivers real-time updates every 30 seconds within a 330ft radius—monitor multiple spaces effortlessly without missing a beat.

The U UNNI Indoor Outdoor Thermometer Hygrometer is a battery-powered wireless weather station featuring a high-precision Swiss Sensirion sensor with ±0.5ºF temperature accuracy and ±2% humidity accuracy. It offers a wide temperature range (-58ºF to 158ºF outdoor) and transmits data wirelessly up to 330 feet every 30 seconds. The large backlit LCD displays temperature, humidity, heat index, dew point, and mold index for up to three sensors, making it ideal for home, office, or garden use with reliable patented wireless technology and a one-year warranty.

Specifications

ASIN	B09FSYJZSH
Additional Features	HIGH-PRECISION
Best Sellers Rank	#510 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #10 in Indoor Thermometers
Brand Name	U UNNI
Color	White+Grey
Connectivity Technology	WIRELESS
Customer Reviews	4.4 4.4 out of 5 stars (10,703)
Display Type	LCD
Included Components	1 x Hygrometer 1 x User Manual 1 x remote sensor, one-year warranty
Is Used Where	Indoor, Outdoor
Item Highlight	4.5" Clear Backlight Display, No Setup Required, Battery Powered, Heat Mold Dew Index for Garage Patio for Gifts Presents
Item Length	4.8 inches
Item Weight	0.85 kg
Manufacturer	U UNNI
Model	UN0581
Number of Batteries	3 AAA batteries required.
Number of Items	1
Number of Packs	1
Part Number	UN0581
Power Source	Battery Powered
Recommended Uses For Product	Garden, Home, Office, Laboratory
Sensor Technology	Wireless
Shape	Rectangular
Specific Uses For Product	heat index , dew point index and mold index
Style Name	Compact
Temperature Accuracy	0.28 °C
Unit Count	1 Count
Upper Temperature Range	158 °F

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