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.

Why do "dashes" appear?

A. Walls, glass windows, stucco walls, and large metal objects will block signal transmission and shorten the distance.

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.

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.

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🌦️ Master your microclimate with precision and style!

EXPANDABLE RELIABLE - Supports up to 3 remote sensors on different channels with a 1-year warranty for peace of mind.
INSIGHT BEYOND BASICS - Track heat index, dew point, and mold risk in real time to protect your home and health.
PRECISION YOU CAN TRUST - Swiss-made Sensirion sensor delivers ultra-accurate temperature and humidity readings with ±0.5ºF and ±2% precision.
READABILITY MEETS STYLE - Large, bold LCD with backlight ensures clear visibility day or night, wall-mount or tabletop friendly.
STAY CONNECTED ANYWHERE - Patented wireless tech updates data every 30 seconds within a 330ft radius—monitor multiple spaces effortlessly.

The U UNNI Indoor Outdoor Thermometer Hygrometer is a battery-powered wireless weather station featuring a Swiss-made high-precision sensor for accurate temperature (±0.5ºF) and humidity (±2%) monitoring. It transmits data up to 330ft every 30 seconds, supports up to 3 remote sensors, and displays heat index, dew point, and mold index on a large backlit LCD. Compact and versatile, it’s designed for professional-grade home climate awareness.

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E£ 7811

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TrustScore 4.5 | 7,300+ reviews

Fatima A.

Best international shipping I've ever tried. Worth every penny!

3 days ago

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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Manufacturer	U UNN
Part number	UN0581
Item Weight	848 g
Product Dimensions	14.5 x 3.5 x 14.5 cm; 848 g
Batteries	3 AAA batteries required.
Item model number	UN0581
Colour	White
Style	Compact
Shape	Rectangular
Power source type	Battery Powered, Not Included
Item Package Quantity	1
Display style	LCD
Specification met	FCC
Special Features	HIGH-PRECISION
Specific uses	heat index , dew point index and mold index
Included components	1 x Hygrometer 1 x User Manual 1 x remote sensor, one-year warranty
Batteries included?	No
Batteries Required?	No

Indoor Outdoor Thermometer Hygrometer Wireless Weather Station, Temperature Humidity Monitor Battery Powered Inside Outside Thermometers with 330ft Range Remote Sensor and Backlight Display

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