La Crosse Technology Atomic Digital Clock with Outdoor Sensor — Grey/Black, Large 2.125" Digits & WWVB Sync

The La Crosse Technology 513-1417AL-INT is a battery-powered atomic digital clock with a weather-resistant outdoor sensor that displays precise atomic time, indoor/outdoor temperatures, calendar and moon phase on a large, easy-to-read LCD.

This sleek grey-and-black digital clock combines automatic WWVB atomic timekeeping with a wireless outdoor temperature sensor so you always see accurate time and current temperature at a glance. The display features large 2.125-inch time digits, a full calendar, moon phase icons and indicators for alarm and signal status. Setup is straightforward: insert batteries, follow the menu prompts to set language, time zone and temperature units, and the clock will keep itself accurate by syncing to the atomic signal unless you choose to turn that feature off.

How does the clock receive outdoor temperature data?

The included weather-resistant sensor transmits outdoor temperature readings to the clock over a 433 MHz wireless link. Place the sensor vertically, power it with two AA batteries, and it will send temperature updates to the clock within a recommended open-air range up to 330 feet (100 meters).

• Weather-resistant outdoor sensor included for reliable placement
• Wireless transmission range up to 330 ft (100 m) line-of-sight
• Sensor operates down to -40°F for cold climates
• Simple TX button to force a manual transmission when pairing

What atomic time features and settings are available?

The clock syncs automatically to the WWVB atomic time standard and adjusts for Daylight Saving Time when atomic mode is enabled. You can also disable atomic sync and set the time manually, choose English or Español for on-screen prompts, and pick one of seven U.S. time zones.

• Automatic atomic time with DST adjustment (can be turned off)
• Seven U.S. time zone options from Atlantic to Hawaiian
• 12-hour display with large 2.125-inch digits for easy reading
• Menu-driven setup: language, beep, atomic/DST, time zone, date and units

How do I set up, troubleshoot, or reset the clock and sensor?

Initial setup requires installing batteries first in the sensor, then the clock, and using the SET button to walk through language, time zone and units. If the units fail to pair or display incorrect readings, a full factory restart clears stored data and restores factory defaults.

• Insert two AA batteries into sensor first, then the clock; use SET and +/- to configure
• Factory restart: remove batteries, press any clock button 20 times, wait 15 minutes without power
• After restart insert fresh batteries and press sensor TX while sensor is 5–10 ft from the clock
• Allow both units 15 minutes together to establish a strong RF connection

What alarm and display conveniences does this model offer?

The unit includes a crescendo alarm with a 10-minute snooze, visible indicators for alarm and weak-battery, and a multi-function LCD that shows calendar and moon phase. You can mute key beeps if preferred and switch temperature display between Fahrenheit and Celsius.

• Crescendo alarm with 10-minute snooze for gentle wake-ups
• Calendar, month/day/date and moon phase icons on the LCD
• Low/weak battery and WWVB signal indicators for easy diagnostics
• Option to turn key beeps on or off and change temperature units

Who is this for: The La Crosse Technology 513-1417AL-INT suits homeowners, renters or office users who want a low-maintenance wall or tabletop clock that combines reliable atomic timekeeping with accurate outdoor temperature readings. It’s a practical pick for kitchens, living rooms, garages or porches where a clear display, remote temperature monitoring and simple setup are priorities. If you need battery-operated convenience, large digits and automatic time updates with an optional manual override, this model offers a balanced set of everyday features.