10 Best Atomic Clock With Indoor Outdoor Temperature of December 2025

• Wirelessly monitors indoor/outdoor temperatures
• Atomic Clock automatically & adjusts for daylight Saving time
• 12- & 24-hour Clock. Remote transmission of outdoor temperature to temperature station by 915 MHz
• Wall hanging or free standing; Perpetual calendar & Time zone setting
• Requires 2 AA & 2 AAA batteries
• Accurate and self-setting atomic time and date with automatic daylight saving time
• Indoor and outdoor temperature; 200 feet wireless range.
• Automatically updates for Daylight Saving Time (on/off option); Atomic time and date with manual setting
• 4 different languages: English, French, German or Spanish, kindly refer the user manual given below for troubleshooting steps. Dimensions: Display: 8.9 L x 1.2 W x 7.1 H & Sensor: 1.98 L x 0.56 W x 3.41 H in Inches
• Refer to the PDF attached below in Technical Specification for User Manual.
• Accurate and self-setting atomic time and date with automatic daylight saving time
• Indoor and outdoor temperature

La Crosse Technology

• Dynamic forecast icons with tendency arrows
• Temperature & humidity (hi/lo) customizable alerts
• Comfort level color bar
• Adjustable backlight.Sensor dimension: 1.57 L x 0.79 W x 5.12 H inches
• Self setting accurate atomic time and date with automatic daylight savings time reset (on/off optional)

La Crosse Technology

• Atomic Accuracy: The Atomic clock has a built-in receiver that automatically synchronizes itself with the WWVB radio broadcast by the US Government’s National Institute (NIST) in Fort Collins, Colorado. The Atomic Clock will always be accurate to within one second as it receives daily WWVB updates.
• Wireless Outdoor Sensor: The Wireless outdoor sensor (included) transmits the outdoor temperature to the Atomic Wall Clock. The sensor can be placed anywhere within 100ft of the receiving unit. The wireless technology means no wire installation is necessary.
• Jumbo 3” Tall LCD Time Display - Easy to Read, Easy to Use, Easy to Set up - Use as either a wall clock, or as a desk clock with integrated stand. Perfect for anyplace in your home.
• Displays indoor and outdoor temperature - Displays calendar and day of week
• Battery powered: Main unit 3 x AA batteries - Sensor 2 x AA batteries (not included)

Sharp

• [7.5" LCD Screen Weather Station] Newentor temperature and humidity monitor adopts 7.5'' LCD color display, which displays more informations you need: indoor/outdoor temperature and humidity(max/min), temperature & humidity (hi/lo) customizable alerts, time/date, alarm clock/snooze(extra 5-minute sleep), vivid weather forecast(next 8-24h weather), moon phases, barometric pressure.
• [3-Channel Temperature and Humidity Thermometer] Wirless temperature forecast station (built-in sensor) can support up to 3 wireless outdoor sensors, you can monitor outside conditions when you are in home. This weather station will come with one outdoor sensor, ordering more sensors by searching ASIN: B0836F4QXS, more technical support sending email to: [email protected].
• [Full Color Forecasting Icons Weather Station] This wireless weather station calculates the weather forecast for the next 8 hours based on weather-related variables, including changes in temperature, humidity and barometric pressure to generate a accuracy personalized forecast for your location, allow 7 to 10 days for barometric calibration as will ensure an accurate personal forecast for your location.
• [2 Modes of Displaying Indoor and Outdoor Temperature] To meet customers' daily use, pressing the side button "UP" can change temperatur dispaly switched to either "C" or "F", comfort level color bar display beside indoor humidity also. Not only work as normal indoor/outdoor weather thermometer, but also can be a alarm Clock with calendar,time & snooze.
• [Two Power Modes & Brightness-Adjustable Backlight] Color Display weather station be powered by a DC adapter (included) or 2*AA battery (not included). The screen will turn off automatically after 15 seconds to save power when using battery power. It stays on if you use a power adapter. Screen brightness can be adjusted with the SIXTH button beside the weather station. Extra USB charging port can help you charging your phone.

Newentor

• Stylish Dark Theme with Easy-to-Read Color Display
• Includes Self-Calibrated 12-24 Hour Forecast Feature
• Adjustable Backlight and Comfort Level Readout
• Daily High/Low Records for Humidity and Temperature
• American Based Company in Lake Geneva, WI, USA

AcuRite

• Wirelessly monitors indoor/outdoor temperature
• 12 moon Phase icons
• Atomic Time & date. Transmission range: Up to 330 Feet . Outdoor temperature range: -39.8°F to 139.8 °F (-39.8°C to 59.8 °C)
• Automatically updates for daylight savings
• Perpetual calendar
• Brushed-aluminum atomic wall clock with time, date, and temperature functions
• Radio-calibrated for accuracy to within 1 second; automatic self-adjustment
• Indoor and remote temperatures, moon phase readings, and alarm with snooze
• 12- or 24-hour clock modes; time zone setting; remote transmission up to 330 feet
• 12-1/4 by 8 by 1-1/4 inches; takes 4 AA batteries; wall-mount or tabletop; 1-year warranty

La Crosse Technology

• 12-24 Hour Forecasts with 14 Different Notification Icons
• Patented Self-Calibrating Local Forecast
• Monitor Indoor and Outdoor Conditions with Remote Sensor
• Easy to Setup and Use
• Company Based in Lake Geneva, WI, USA - Since 1943

AcuRite

• Atomic indoor wall clock with moon phase and indoor/outdoor temperature display from La Crosse; sets automatically to WWVB signal
• Large digital display; alarm clock function with snooze button
• Outside TX37U-IT sensor transmits data every 4 seconds at 915MHz from up to 330 feet away; manual setting option
• Requires separate purchase of 4 AA batteries; low battery indication icons for both clock and sensor
• Clock measures 10-1/4 inches wide by 1-1/6 inches deep by 9-3/4 inches high; 1-year limited warranty.Dimensions:Sensor: 1.50 L x 0.83 W x 5.05 H inches

La Crosse Technology

• HIGHLY LEGIBLE DISPLAY: Features large, easy to read 2" high display
• SELF-SETTING/ADJUSTING: Using radio frequencies broadcast from NIST's Colorado Atomic Clock (Atomic feature only functions in North America)
• 12 OR 24 HOUR: Choose to display the time in 12 or 24 hour format, also shows indoor/outdoor temperature display in Celsius or Fahrenheit
• 8 TIME ZONES: Choose to display the time in 8 different time zones with option to turn Daylight Savings Time on or off
• BATTERIES INCLUDED: Comes with 2 AA long life batteries

Marathon

• Atomic self set time and date with automatic daylight saving time resets (optional on/off)
• Monitors indoor & wireless outdoor temperature (F/C) with trend arrows
• Large 2. 125 inch time digits for easy reading
• Calendar: month, date, day
• Wall Hanging or Free standing
• Power Source Type: Battery Operated

La Crosse Technology