La Crosse Technology atomic digital wall clock — Black with outdoor sensor, temperature & forecast

The La Crosse Technology 512-65937 is a battery-powered atomic digital wall clock that shows precise time, full calendar, indoor/outdoor temperature with trend arrows, and a 12-hour forecast in a sleek black and brushed silver frame.

This compact digital clock combines automatic atomic timekeeping with environmental readouts so you can glance once and get the data you need. Designed for homes and offices, it syncs time accurately, updates for Daylight Saving Time, and receives wireless temperature data from the included outdoor sensor up to 330 feet away. The simple, contemporary face keeps the display clean and readable under normal room lighting.

How accurate is the timekeeping and how does it set itself?

The clock receives the atomic time signal and automatically corrects itself, delivering highly accurate time without manual adjustment. You can choose 12- or 24-hour format, and there’s an option to disable DST auto-adjust if you prefer manual control.

• Automatic atomic synchronization for precise time
• Selectable 12- or 24-hour display
• On/off option for Daylight Saving Time auto-adjust
• Seven selectable U.S. time zones for regional setup

What temperature and forecast information does this clock provide?

The display shows both indoor and outdoor temperatures in Fahrenheit or Celsius, plus trend arrows that indicate whether the temperature is rising, steady, or falling. A simple twelve-hour forecast icon gives a quick outlook of expected conditions based on sensor readings.

• Indoor and outdoor temperature readouts (°F/°C)
• Trend arrows to show temperature direction
• 12-hour forecast icon for quick weather outlook
• Outdoor sensor range up to 330 feet (line-of-sight)

What are the calendar and alarm features?

The clock includes a full calendar view displaying month, date, and weekday to keep schedules visible at a glance. It also offers a crescendo alarm with a 10-minute snooze so you can use it as a simple bedside or office alarm without complicated menus.

• Full calendar: month, date, and day of week
• Crescendo alarm sound with 10-minute snooze
• Clear, easy-to-read LCD layout for everyday use

What should I know about installation and power?

Setup is straightforward: mount the clock on a wall or place it on a flat surface, then install two AA batteries in the clock and two AA batteries in the TX141v3 outdoor sensor. Because the display is LCD without backlighting, place the clock where ambient room light makes the screen easiest to read.

• Clock: requires 2 AA alkaline batteries (not included)
• Outdoor sensor (TX141v3): requires 2 AA batteries (not included)
• Sensor operates in temperatures from -40°F to 140°F (-40°C to 60°C)
• Allow 7–10 days for the sensor to fully calibrate for best accuracy

Who this is for: The La Crosse Technology 512-65937 is ideal for anyone who wants a low-maintenance, accurate wall clock that also displays quick weather and temperature information. It’s a good fit for kitchens, home offices, workshops, or reception areas where clear time and environmental cues help with daily planning. If you prefer a backlit display for dark rooms, consider positioning this model where natural or ambient light illuminates the LCD for optimal readability.