C86279V3 - Clock LA CROSSE TECHNOLOGY - Free user manual and instructions
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| Product Type | Atomic Digital Clock with Indoor/Outdoor Temperature and Humidity |
| Model | C86279V3 |
| Brand | La Crosse Technology |
| Dimensions | 6.7 x 4.1 x 1.4 inches (17 x 10.4 x 3.6 cm) |
| Weight | 0.6 lbs (272 g) |
| Power Supply | 2 AA batteries (not included) for clock; 2 AA batteries for outdoor sensor |
| Radio Control | WWVB atomic time signal synchronization (60 kHz) |
| Time Display | 12 or 24-hour format with seconds |
| Calendar | Month, date, and day of week (English/Spanish selectable) |
| Indoor Temperature Range | +14°F to +122°F (-10°C to +50°C) |
| Outdoor Temperature Range | -40°F to +140°F (-40°C to +60°C) |
| Humidity Range | 1% to 99% (indoor and outdoor) |
| Alarm | 2 daily alarms with snooze (10 minutes) |
| Outdoor Sensor | Wireless, transmission range up to 330 ft (100 m) open air |
| Temperature Trend | Arrows indicate rising, steady, or falling |
| Display Features | Large LCD with backlight (press any button) |
| Mounting | Table stand or wall mountable |
| Maintenance & Cleaning | Clean with a soft, dry cloth. Remove batteries if not used for extended periods. |
| Safety | Keep away from direct sunlight and heat sources. Do not immerse in water. |
| Spare Parts & Repairability | Non-repairable user parts. Replace batteries as needed. Outdoor sensor sold separately (model TX21U-IT). |
| General Information | Designed for indoor use. Operating temperature: +14°F to +122°F (-10°C to +50°C). |
Frequently Asked Questions - C86279V3 LA CROSSE TECHNOLOGY
How do I set up the atomic clock for the first time?
Insert 2 AA batteries into the clock and 2 AA batteries into the outdoor sensor. The clock will automatically search for the WWVB atomic time signal. Place the sensor within 100m of the clock. The clock should display the correct time within 3-5 minutes. If not, press the SET button to manually set time and date.
Why is my clock not receiving the atomic time signal?
The signal may be obstructed by metal, concrete, or electronic devices. Try placing the clock near a window facing Colorado (Fort Collins). Avoid placement near microwaves, TVs, or computers. The clock attempts sync every night; you can force a sync by pressing the SET button for 3 seconds until the tower icon flashes.
How do I change from 12-hour to 24-hour time format?
Press and hold the SET button for 3 seconds to enter settings. Use the +/- buttons to adjust. When you reach the time format option, toggle between 12H and 24H. Press SET to confirm and move to next setting.
What does the outdoor sensor look like and how do I pair it?
The outdoor sensor (model TX21U-IT) is a small white weather-resistant unit with a mounting bracket. To pair, insert batteries in both devices. The clock will automatically detect the sensor. If not, press and hold the CHANNEL button on the clock for 3 seconds to search for the sensor.
How do I set the alarm?
Press the ALARM button once to enter alarm set mode. Use +/- to set hour, then minute. Press ALARM to confirm and set the second alarm if desired. Press ALARM again to exit. The alarm icon will show when alarms are active.
Why is the outdoor temperature showing dashes or no data?
Check that the sensor batteries are fresh and inserted correctly. Ensure the sensor is within range (330 ft open air). Press and hold the CHANNEL button for 3 seconds to re-sync. If the problem persists, the sensor may be defective or out of battery.
Can I mount the clock on a wall?
Yes, the clock has a recessed hanging hole on the back for wall mounting. Use a screw or nail. Ensure the wall can support the weight (0.6 lbs). Avoid placing near metal or large appliances that could interfere with the atomic signal.
How do I replace the batteries?
Open the battery compartment on the back of the clock and outdoor sensor. Remove old batteries and replace with new alkaline batteries of the same type (AA). Dispose of old batteries properly. The clock retains memory for a few minutes during battery change.
What does the backlight button do?
Press the LIGHT button (top of the clock) to activate the backlight for 10 seconds. The backlight illuminates the LCD display for easy reading in the dark. Continuous backlight is not available to preserve battery life.
Can I use rechargeable batteries?
It is not recommended. Rechargeable batteries typically have a lower voltage (1.2V vs 1.5V) and may cause unstable operation or reduced performance. Please use quality alkaline batteries for best results.
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USER MANUAL C86279V3 LA CROSSE TECHNOLOGY
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Product information
Brand : LA CROSSE TECHNOLOGY
Model : C86279V3
Category : Clock