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La Crosse Technology Weather Station with Customizable Alerts

Wireless outdoor sensor included
5 AA batteries listed, sold separately
AC adapter included for constant backlight
Forecast adjusted to barometric pressure
140 °F upper temperature range
12.8 ounces, 8.96 inches wide
1 year limited parts and labor warranty

Last refreshed Oct 2, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A wireless weather station that shows indoor comfort and outdoor temperature and humidity from a transmitting sensor, with a pressure based forecast. The listing gives conflicting accuracy figures, so treat precision as unconfirmed.

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ASIN: B071VKV4HJModel: C85845-INTCategory: Weather Stations

Overview

Not a stand-alone thermometer, this is a wireless color weather station with an indoor display and a transmitting outdoor sensor. The forecast adjusts to barometric pressure, and the time and date set themselves and reset for daylight saving.

Customizable alerts, an indoor comfort indicator and daily highs and lows give a rounded view of the backyard and the house. It runs from the included adapter for a constant backlight, or from batteries for an on-demand backlight that saves battery life. The limitation is the contradictory specs: display type and accuracy figures disagree with the seller copy.

Who it's for

A homeowner who wants a forecast and a backyard reading on a shelf or wall display, with alerts for chosen conditions, is the target. Battery use is optional once the adapter is plugged in. Those who need wind speed, rainfall or documented accuracy should look elsewhere.

Pros and cons

Pros

Outdoor sensor included
AC adapter included
Indoor comfort indicator
Self-setting time and date

Cons

Accuracy figures conflict in listing
Batteries sold separately
No wind or rain data

Performance notes

A radio signal carries readings from the outdoor sensor to the display, so distance and walls between them affect reliability. The forecast comes from barometric pressure trends, and the display shows outdoor and indoor comfort data. With the adapter plugged in the backlight is constant, while battery operation uses an on-demand backlight to save power.

Where it stands among weather stations

#10 most-searched brand and model of the 11 weather stations lines we track (by search demand, not sales).

From the specs of the 15 weather stations we list; not a test result.

Specifications

Dimensions & fit
Brand	La Crosse Technology
Model	C85845-INT
Item Dimensions D x W x H	1.14"D x 8.96"W x 5.43"H
Item weight	12.8 ounces
Capacity & performance
Upper Temperature Range	140 °F
Power & efficiency
Power Source	Corded Electric
Construction & materials
Color	Black
Compatibility & installation
Connectivity Technology	Wireless
Included components
Included Components	Weather station, AC adapter, wireless sensor, quick setup guide
Warranty & support
Warranty Description	1 year limited parts and labor
Other details
Display Type	LED
Number of Batteries	5 AA batteries required (sold separately)
Is Used Where	Indoor, Outdoor
Additional Features	Adjustable Brightness, Customizable Alert, Large Display, Weather Resistant, Wireless
Specific Uses For Product	Dew Point, Heat Index, Humidity, Temperature, Time
Sensor Technology	RF