Installation Guide
ATOMIC DIGITAL WALL CLOCK
with Moon Phase and Indoor/Outdoor Temp 
QUICK START GUIDE
Model: WS-8418U-IT
DC:051418
Full Manual can be found under the Support Tab here: http://bit.ly/WS-8418U
ATOMIC DIGITAL WALL CLOCK OVERVIEW POWER UP
1. Insert 2-AA batteries into the outdoor sensor.
2. Insert 2-AA batteries into the clock.
3. Configure basic settings.
4. Once the sensor is reading to your clock, place it outside
 in a shaded location. 
Watch sensor mounting video: http://bit.ly/TH_SensorMounting 
SETTINGS
• Hold the SET button to enter the Settings Menu.
• Press the PLUS button to adjust values.
• Press the SET button to confirm and move to the next item 
 or exit.
Settings Menu Order:
1. Time Zone
2. Daylight Saving Time ON/OFF
3. Language
4. Hour
5. Minutes
6. Year (2 digit)
7. Month
8. Date
9. Weekday
10. 12/24 Hour Format
11. Fahrenheit/Celsius
WWVB ATOMIC TIME SIGNAL
• The WWVB Atomic Time Indicator will flash when searching 
 for the signal. 
• Depending on your location, reception may take up to 5 
 nights. Generally it will set overnight.
• When WWVB signal is received, the indicator will be solid.
• For information about WWVB Atomic time visit: 
 http://bit.ly/AtomicTime
ALARM SETTING
• Hold the ALM button to enter Alarm Settings.
• Press the PLUS button to adjust values.
• Press the ALM button to confirm and move to the next item 
 or exit.
ACTIVATE | DEACTIVATE ALARM 
• Press the ALM button to activate or deactivate the alarm. 
• The Alarm Indicator will display when active. 
Note: The alarm will automatically be activated after setting a 
new alarm time.
SNOOZE
• When the alarm sounds, press the SNZ button to silence 
 the alarm for 10 minutes. The Alarm Indicator will flash.
• Press any button except SNZ to silence the alarm for 24 
 hours.
Mounting 
Holes
Pull Out 
Legs
Buttons
on Front
Battery 
Compartment
Page | 2 Page | 3 Page | 4
 Languages:
 US English
 F  French
 E  Spanish
 d  German
This clock can be set to 
time zone +/- 12 or 
anywhere in between.
North American time zones:
-4h ATL - Atlantic 
-5h EST - Eastern (default)
-6h CST - Central
-7h MST - Mountain
-8h PST - Pacific
-9h ALA – Alaska
-10h  -Hawaiian
WWVB 
Atomic Time
Indicator
Alarm 
Indicator
Time Display
Calendar Display
& Moon Phase
Indoor 
Temperature 
Display 
(°F/°C)
Outdoor 
Temperature 
Display 
(°F/°C)
 SET + ALM SNZ


