404-3841B - Wall clock LA CROSSE TECHNOLOGY - Free user manual and instructions
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| Product Type | Wall Clock |
| Brand | La Crosse Technology |
| Model | 404-3841B |
| Category | Wall Clock |
| Dimensions | 14.0 x 14.0 x 1.8 inches (35.6 x 35.6 x 4.6 cm) |
| Weight | 2.4 lbs (1.1 kg) |
| Power Supply | 1 AA battery (not included) |
| Battery Life | Up to 24 months |
| Time Synchronization | Atomic WWVB radio controlled |
| Time Display | Analog dial with quartz backup |
| Temperature Display | Indoor temperature in Fahrenheit or Celsius |
| Humidity Display | Indoor humidity percentage |
| Time Zones | 7 US time zones selectable |
| Signal Reception | Hourly overnight attempts for WWVB time signal |
| Features | DST on/off option, manual time setting |
| Mounting | Keyhole hanger for wall placement |
| Maintenance | Clean with a soft dry cloth; avoid water and harsh chemicals |
| Safety | Use specified battery only; keep away from children and moisture |
| Parts & Repairability | No user-serviceable parts; contact manufacturer for service |
| Included Accessories | Clock and instruction manual (battery not included) |
Frequently Asked Questions - 404-3841B LA CROSSE TECHNOLOGY
How do I set the time on my La Crosse Technology 404-3841B wall clock?
To set the time manually, insert the battery. Then press and hold the SET button until the time zone flashes. Adjust the time using the + and - buttons, then press SET again to save. You can also let the clock receive the atomic signal for automatic time setting.
Why is my atomic clock not receiving the WWVB signal?
The clock attempts to receive the WWVB radio signal each night. To improve reception, place the clock near a window and away from metal objects and electronics. Avoid basements and concrete walls. Ensure the battery is fresh and the time zone is set correctly.
How do I set the time zone manually?
Press and hold the SET button for 3 seconds. The time zone abbreviation (e.g., EST, CST, MST, PST) will flash. Use the + or - buttons to select your time zone, then press SET to confirm. This is essential for accurate atomic time.
What type of battery does the 404-3841B use?
The clock uses one AA battery (not included). Use a high-quality alkaline or lithium battery for best performance. Replace the battery when the display becomes dim or the clock stops working.
How do I replace the battery?
Remove the clock from the wall, locate the battery compartment on the back, slide the cover off, and remove the old battery. Insert a new AA battery with the correct polarity, close the cover, and remount the clock. The clock will then search for the atomic signal.
How do I switch between Fahrenheit and Celsius?
In the temperature display section (usually on the right side), press and hold the TEMP button for 3 seconds. Use + or - to toggle between °F and °C, then press TEMP to confirm.
How do I mount the clock?
Use the keyhole hanger on the back. Mark a screw position on the wall, install a screw (not included), and hang the clock. Make sure it is level for proper weight distribution.
The clock does not show the correct time; what should I do?
First, check that the time zone is set correctly. If the clock is still wrong, press the RCC button to force a signal search. Place the clock in a better location near a window, away from interference. If it still fails, replace the battery and try again.
Does the clock have a backlight?
This model does not have a backlight. It uses an analog dial with a digital sub-display. The digital display is intended for quick viewing in normal room lighting.
How do I clean and maintain the clock?
Use a soft, dry cloth to wipe the exterior. Do not use water, solvents, or abrasive cleaners. Avoid exposing the clock to extreme temperatures, humidity, or direct sunlight. Replace the battery regularly to prevent leakage.
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USER MANUAL 404-3841B LA CROSSE TECHNOLOGY
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Product information
Brand : LA CROSSE TECHNOLOGY
Model : 404-3841B
Category : Wall clock