Introduction
This manual provides comprehensive instructions for the setup, operation, and maintenance of your La Crosse Technology W88723 Color Alarm Clock. This device features a multi-color display, indoor temperature and humidity monitoring, a USB charging port, and an adjustable alarm with snooze function. Please read this manual thoroughly before use to ensure proper functionality and to maximize your product experience.
Package Contents
- La Crosse Technology W88723 Color Alarm Clock
- 5.0V AC Adapter
- Instruction Manual
Initial Setup
Power Connection
Connect the included 5.0V AC adapter to the power jack on the back of the alarm clock and then plug the adapter into a standard wall outlet. The clock will power on and the display will illuminate.
Battery Backup Installation
For battery backup, remove the battery cover on the back of the unit. Insert 2 new AAA batteries (not included) according to the polarity markings (+ and -). Replace the battery cover. Batteries provide backup power for time and alarm settings during a power outage, but the display will not be illuminated.

Image: Rear view of the alarm clock, illustrating the battery compartment and control buttons.
Operating Instructions
Setting Time and Date
- Press and hold the SET button for 3 seconds to enter time setting mode. The hour will flash.
- Use the + or - buttons to adjust the hour. Press SET to confirm and move to minutes.
- Repeat this process for minutes, 12/24 hour format, year, month, and date.
- Press SET to exit the setting menu.
Setting the Alarm
- Press and hold the ALARM button for 3 seconds to enter alarm setting mode. The alarm hour will flash.
- Use the + or - buttons to adjust the alarm hour. Press ALARM to confirm and move to minutes.
- Repeat for alarm minutes.
- Press ALARM to exit.
- To activate/deactivate the alarm, press the ALARM button once. An alarm icon will appear/disappear on the display.
Adjusting Display Brightness and Snooze
- Press the LIGHT button repeatedly to cycle through 4 brightness levels (HI-LOW-OFF).
- When the alarm sounds, press the SNOOZE button to temporarily silence it. The snooze duration is adjustable from 5 to 120 minutes.
- To adjust snooze duration, press and hold SNOOZE for 3 seconds, then use + or - to set the desired time.
Temperature and Humidity Display
- The clock displays indoor temperature in Fahrenheit (°F) or Celsius (°C) and indoor humidity (%RH).
- Press the - button to toggle between °F and °C.
USB Charging Port
The clock includes a 1 AMP USB charging port on the side. Connect your mobile device (e.g., smartphone, tablet) using its charging cable (not included) to charge it. This port is for charging only and does not transfer data.

Image: The alarm clock with a smartphone connected to its side USB port for charging.
Care and Maintenance
- Clean the display and casing with a soft, damp cloth. Avoid abrasive cleaners or solvents.
- Do not immerse the unit in water or expose it to extreme temperatures.
- Ensure the clock is placed on a stable, flat surface to prevent accidental falls.
- Remove batteries if the unit will not be used for an extended period.
Troubleshooting
| Issue | Solution |
|---|---|
| Display is dim or blank. | Ensure the AC adapter is securely plugged into both the clock and a working wall outlet. Check brightness settings using the LIGHT button. If using battery backup, the display will not illuminate. |
| Cannot set time or alarm. | Confirm the AC adapter is connected. The clock requires main power for full functionality, including setting adjustments. |
| Display is difficult to read from certain angles. | LCD displays can have optimal viewing angles. Adjust the clock's position or your viewing angle for better clarity. |
| USB charging port not working. | Ensure the AC adapter is connected, as the USB port requires main power. Verify your device's charging cable is functional and properly connected. |
Product Specifications
| Feature | Detail |
|---|---|
| Brand | La Crosse Technology |
| Model Number | W88723 |
| Color | Black |
| Display Type | Digital |
| Product Dimensions | 5.90"L x 1.90"W x 3.50"H |
| Item Weight | 6.4 ounces |
| Power Source | Corded Electric (AC Adapter included) |
| Battery Backup | 2 AAA batteries required (not included) |
| USB Charging Port | 1 AMP output |
| Special Features | Alarm, Auto Dimmable, Calendar Display, Charging Port, Humidity Display, Snooze, Temperature Display, Moon Phase |
| Material | Plastic |
| Mounting Type | Tabletop |
Warranty Information
This La Crosse Technology product is covered by a 1-year limited warranty on parts and labor from the date of purchase. For detailed warranty terms and conditions, please refer to the official La Crosse Technology website or contact customer support.
Customer Support
For further assistance, troubleshooting tips, or to access additional resources, please visit the official La Crosse Technology support page:





