404-3439 - Wall clock LA CROSSE TECHNOLOGY - Free user manual and instructions
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| Product type | Wall clock |
| Brand | La Crosse Technology |
| Model | 404-3439 |
| Display type | Analog and digital (LCD) hybrid display |
| Dimensions (approx.) | 12 x 12 x 1.5 inches (30.5 x 30.5 x 3.8 cm) |
| Weight (approx.) | 1.5 lbs (0.68 kg) |
| Power source | 2 x AA batteries (not included) |
| Battery life | Up to 12 months with quality alkaline batteries |
| Primary functions | Time, date, day of week, indoor temperature, atomic time reception |
| Atomic time | Automatically synchronizes with WWVB radio signal (US) |
| Time display format | 12 or 24 hour selectable |
| Temperature display | Indoor temperature in °F or °C |
| Daylight saving time | Automatically adjusts to daylight saving time (DST) when enabled |
| Mounting | Wall mountable with keyhole slot |
| Maintenance | Clean with soft dry cloth; avoid water and cleaning agents |
| Security | Use only specified batteries; do not expose to extreme heat or moisture |
| Spare parts and repairability | Batteries replaceable; no user-serviceable internal parts |
| Warranty | 1-year limited manufacturer warranty |
| General information | Designed for home and office use; sets itself automatically for reliable accuracy |
Frequently Asked Questions - 404-3439 LA CROSSE TECHNOLOGY
How do I set up the La Crosse Technology 404-3439 wall clock?
Insert 2 fresh AA batteries into the battery compartment. The clock will search for the atomic time signal within a few minutes. If the signal is found, the time and date set automatically. If not, you can manually set the time using the MODE and +/- buttons.
Why is the atomic time not being received?
The clock receives the WWVB signal primarily at night when atmospheric interference is low. Place the clock near a window facing Colorado (signal location) and away from metal objects or electronics. Allow up to 24 hours for reception. You can also disable atomic time and set manually.
What type of battery does this wall clock require?
It requires 2 AA batteries (alkaline recommended). Do not use rechargeable batteries as they supply lower voltage and may cause malfunction. Replace all batteries at the same time.
How do I change the temperature from Fahrenheit to Celsius?
Press and hold the SNOOZE/LIGHT button or refer to the manual. Typically, holding the 'SET' button for 3 seconds enters settings mode, then use '+' or '-' to toggle between °F and °C.
Can I manually set the time if I don't want atomic time?
Yes. To disable atomic time, hold the 'SET' button, then press the '+' or '-' button until 'ATOMIC' appears on the display. Toggle it OFF. Then you can adjust hour and minute manually.
What is the accuracy of the indoor temperature sensor?
The indoor temperature is accurate to ±2°F (±1°C). The sensor is built into the clock and measures ambient temperature near the clock. Avoid placing in direct sunlight or near drafts for best accuracy.
Is the clock suitable for outdoor use?
No, the 404-3439 is designed for indoor use only. It is not weatherproof and should be protected from humidity and water.
How do I reset the clock to factory settings?
Remove all batteries, wait 30 seconds, then insert fresh batteries. The clock will reset and begin searching for the atomic signal. This resolves most startup or display issues.
What does the DST setting do?
When DST is enabled, the clock automatically advances one hour in spring and falls back in autumn. If you live in a region without daylight saving time, you can disable this feature in the settings menu.
How do I mount this wall clock securely?
The clock has a keyhole slot on the back. Use a screw or nail suitable for your wall type, insert it into the wall, and hang the clock so the screw head fits into the keyhole. Ensure the clock is level for proper display readability.
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USER MANUAL 404-3439 LA CROSSE TECHNOLOGY
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Product information
Brand : LA CROSSE TECHNOLOGY
Model : 404-3439
Category : Wall clock