S77925v3 - Weather Station LA CROSSE TECHNOLOGY - Free user manual and instructions
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| Product Type | Wireless Weather Station |
| Model | S77925v3 |
| Brand | La Crosse Technology |
| Dimensions (Main Unit) | Approximately 200 x 150 x 30 mm |
| Weight (Main Unit) | Approximately 400 g (without batteries) |
| Power Source | Main unit: 3 x AAA alkaline batteries (not included); Outdoor sensor: 2 x AA alkaline batteries (not included) |
| Outdoor Sensor Range | Up to 100 meters (328 feet) open air |
| Indoor Temperature Range | 0°C to 50°C (32°F to 122°F) |
| Outdoor Temperature Range | -40°C to 60°C (-40°F to 140°F) |
| Humidity Range | 1% to 99% RH (indoor and outdoor) |
| Atomic Time Reception | WWVB (US), DCF (Europe), MSF (UK) - selectable |
| Weather Forecast | 12-24 hour forecast with icons (sunny, partly cloudy, cloudy, rainy, stormy) |
| Barometric Pressure | Display with trend indicator |
| Alarm Function | Single alarm with snooze |
| Backlight | Blue LED backlight, auto dimming option |
| Mounting Options | Desk stand or wall mount |
| Maintenance | Clean with dry cloth; avoid water and solvents |
| Safety | Keep out of reach of children; do not expose to extreme temperatures or moisture |
| Spare Parts / Repairability | Contact La Crosse Technology for replacement sensors or batteries; device not user-serviceable |
| General Information | Displays indoor/outdoor temperature and humidity, atomic time/date, weather forecast, barometric pressure trend, and alarm with snooze. |
Frequently Asked Questions - S77925v3 LA CROSSE TECHNOLOGY
How do I set up the weather station for the first time?
Insert batteries into the outdoor sensor first (2 AA), then into the main unit (3 AAA). The main unit will automatically search for the sensor and atomic time signal. Place the sensor outdoors in a shaded location within 100m range.
Why is my outdoor sensor not connecting?
Ensure batteries are fresh and inserted correctly. Check that the sensor is within range (up to 100m open air). Press and hold the SENSOR button on the main unit to force a resync. Avoid interference from metal objects or electronic devices.
How accurate is the atomic time?
The atomic time is synchronized with WWVB (US), DCF (Europe), or MSF (UK) transmitters, typically accurate to within a few milliseconds. Reception may be affected by location and weather; the unit will attempt to sync nightly.
Can I turn off the backlight?
Yes, the backlight can be set to auto-dimming or turned off entirely via the settings menu. Press the LIGHT/SNOOZE button to adjust brightness levels.
How does the weather forecast work?
The station uses barometric pressure changes to predict weather for the next 12-24 hours. It displays icons such as sunny, partly cloudy, cloudy, rainy, or stormy. Note that forecasts are general and may not be 100% accurate.
What does the pressure trend arrow mean?
An upward arrow indicates rising pressure (improving weather), downward arrow indicates falling pressure (deteriorating weather), and a horizontal arrow means steady pressure.
Can I mount the main unit on a wall?
Yes, the back of the unit has a keyhole slot for wall mounting. Use a screw (not included) suitable for your wall type. Ensure the unit is level.
How do I change the temperature units?
Press and hold the SET button for 3 seconds. Use the + or - button to toggle between °F and °C. Press SET again to confirm.
What should I do if the display is dim?
Check the backlight setting and ensure batteries are fresh. The display brightness can be adjusted. If using the AC adapter (if included), ensure it is plugged in properly.
How do I reset the weather station?
Remove the batteries from both main unit and sensor. Press any button on the main unit for 10 seconds to discharge residual power. Reinsert batteries and let the unit reinitialize.
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USER MANUAL S77925v3 LA CROSSE TECHNOLOGY
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Product information
Brand : LA CROSSE TECHNOLOGY
Model : S77925v3
Category : Weather Station