La Crosse Technology WT-2100 User Manual

 

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Introduction: 
 
Congratulations on purchasing the Atomic Alarm Clock with WWVB Radio controlled time, 
calendar, 12/24 hours display, time zone with US map, indoor temperature and two alarms 
settings. This innovative product is ideal for home or office use.  Please read this instruction 
manual to enjoy the full benefits of all the features. 
 
 
 
 
 
 

 

 

 

 
 

 

 
 
 
Features: 
 
•  WWVB Radio controlled time with manual setting option 

•  12/24 hour time display 

•  Time zone with USA map (Pacific Time(-8h); (Mountain Time (-7h); Central Time (-6h); 

Eastern Time(-5h) or GMT 

•  Automatic or manual ON/OFF daylight saving time 

•  Indoor temperature reading (ºC/ºF user selectable) 
•  2 alarm times (crescendo and normal sounding alarms)  

•  snooze interval setting (from 1 to 59 minutes) 

•  Calendar display (weekday/month/date or month/ date/year) 

• LCD 

back-light 

 
Setting up the  Atomic Alarm Clock: 
 
The clock uses 1 x AA LR6 battery (Alkaline recommended). To set please follow these easy 
steps: 
 
 
 
 
 
 

 

 

 

 

 

 

 
1.  Slide the battery cover downwards as indicated by the triangle to reveal the battery 

compartment 

2.  Observing the correct polarisation insert the battery. 
3.  Replace battery cover. 
4.  After power-up, the alarm will sound once and all LCD segments will light up briefly. 
5.  The clock will now start receiving the WWVB time signal and the radio tower icon will start 

flashing indicating that time reception is being attempted 

6.  Time reception takes typically about 3-5 minutes with timeout being 10 minutes.  If after 10 

minutes the WWVB time signal has still not been received, the user should try one of the 
following two actions: 

 

Function keys 

Battery 
compartment 

Snooze button 

Battery  
compartment 

Battery cover