
WS-8115U-IT www.lacrossetechnology.com/support Page | 1
Model: WS-8115U-IT
Instruction Manual
DC: 082415
Digital Atomic Wall Clock
Indoor Temp,
Weekday, Date,
+ Outdoor Temp
TX38U-IT-N
Sensor
2 AAA
batteries

WS-8115U-IT www.lacrossetechnology.com/support Page | 2
Get Started
Step 1: Insert 2 fresh AAA, Alkaline batteries into the X38U-IT-N sensor.
Observe the correct polarity.
Step 2: Insert 2 fresh AA, Alkaline batteries into the atomic clock.
Observe the correct polarity.
Restart: If the outdoor temperature shows dashes, remove batteries
from the station & outdoor sensor. Press any button on the station 20
times. After 15 minutes, return to Step 1.
Set Time, Date, 12/24 Hour, Temperature Units
1. Press the SET button to enter time set mode, confirm
adjustments and move to next item.
2. Press the PLUS button to adjust values.
Settings order:
1. Time Zone
2. Daylight Saving Indicator
3. Language
4. Hour
5. Minutes
6. Year (2 digit)
7. Month
8. Date
9. Weekday
10. 12/24 Hour Format
11. Fahrenheit/Celsius
Press SET to exit, or wait 30 seconds without pressing buttons to return
to the normal time display.
Set Alarm Time
1. Hold ALARM to enter alarm set mode.
2. Press PLUS to adjust values.
3. Press ALARM to confirm adjustments and move to
next item.
Setting order: 1. Hour 2. Minutes
Press ALARM to exit, or wait 30 seconds without pressing buttons to
return to the normal time display.
This clock has time zones
North American time zones:
-5h EST - Eastern (default)