Model: C89201 www.lacrossetechnology.com/support
Button Press Functions Hold 3 seconds
°F/°C SET
Move through program menu (setup)
Select temperature in °F/°C
Enter program menu, set time,
date, etc. (setup)
ALARM Once: View Alarm
Activate or Deactivate
Alarm set
1 step forward (setup) Fast advance (setup)
1 step backward (setup) Fast backward (setup)
WWVB Search
LIGHT
(HI-LOW-OFF)
SNOOZE
Once: Backlight Low (A/C
Twice: Backlight OFF (A/C
3rd time: Backlight ON (A/C
Activate backlight for 10 seconds
Trigger snooze (alarm active)
Fahrenheit/Celsius
• From the time display mode, press the °F/°C SET button once to switch
from Fahrenheit to Celsius.
Program Menu
The program menu allows you to select your preferences:
WWVB Reception ON/OFF
Time Zone
Daylight Saving Time Indicator ON/OFF
12/24-Hour Time Format
Hour
Minutes
Year
Month
Date
WWVB Reception ON/OFF
The °F/°C SET button will move through the program menu. The + or - buttons will change a value.
1. Hold the °F/°C SET button 5 seconds. WWVB and the word ON will flash.
2. Press the + or - buttons to turn WWVB time reception to OFF.
3. Confirm with the °F/°C SET button and move to the time zone.
Time Zone
The time zone is defaulted to Eastern Time (EST). Select your time zone and the atomic
alarm clock will set the time correctly after receiving the WWVB time signal.
1. EST will flash.
2. Press the
+ or - buttons to select a different Time Zone.
3. Confirm with the °F/°C SET button and move to the daylight saving time indicator.
Daylight Saving Time Indicator ON/OFF
The Daylight Saving Time indicator should be ON if you live in an area that observes DST. The indicator
allows automatic time adjustments when we are into and out of daylight saving time.
1. DST will flash and the word ON.
2. Press the
+ or - buttons to turn this to OFF if you do not observe DST.
3. Confirm with the °F/°C SET button and move to the 12/24-hour time.
WWVB
DST
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