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Experience meteorological-grade weather monitoring at home! The Youshiko YC9389 combines seven professional sensors in one wireless outdoor unit, delivering comprehensive weather data including UV index and light intensity—features typically found only in £300+ stations. Perfect for serious weather enthusiasts, gardeners, and outdoor activity planners.
| Top Section | MSF Radio Controlled Time, Date, Weekday (7 languages), Moon Phase |
| Middle Section | Indoor Temp/Humidity, Outdoor Temp/Humidity, Weather Forecast Icons |
| Bottom Left | Wind Speed/Direction, Beaufort Scale, Wind Chill |
| Bottom Center | Rainfall Data, Barometric Pressure with Trend |
| Bottom Right | UV Index, Light Intensity, Heat Index, Dew Point |
Forecast Accuracy: Based on barometric pressure trends (12-24 hour prediction)
| Index | What It Measures | Why It Matters |
|---|---|---|
| Feels Like | Apparent outdoor temperature | Combined effect of temp, wind, humidity |
| Heat Index | Temperature + humidity effect | Risk of heat exhaustion in summer |
| Wind Chill | Temperature + wind speed effect | How cold it really feels in wind |
| Dew Point | Condensation temperature | Mould risk, watering needs |
Alert Capability: Set custom thresholds for each weather index
Visual Warning: Flashing LCD indicator when alerts triggered
| Dimensions | 120 x 189.5 x 22mm (W x H x D) |
| Display Type | Large LCD with multiple data zones |
| Power | 3 x AA batteries (not included) or AC adapter (optional) |
| Mounting | Wall mount or desktop stand |
| Reception | MSF UK atomic clock signal (60 kHz) |
| Wireless Range | Up to 150m (450 ft) from outdoor sensor |
| Languages | EN / DE / FR / ES / IT / NL / RU |
| Dimensions | 343.5 x 393.5 x 136mm (W x H x D) |
| Temperature Range | -40°C to 60°C (-40°F to 140°F) |
| Humidity Range | 10% to 99% RH |
| Wind Speed Range | 0 to 180 km/h (0-112 mph) |
| Wind Speed Units | mph, m/s, km/h, knots |
| Wind Direction | 360° / 16-point compass resolution |
| Rainfall Capacity | 9999mm / 393.7 inches maximum |
| Rain Resolution | 0.3mm / 0.01 inch |
| UV Index Range | 0 to 16 |
| Light Intensity | Klux, Kfc, W/m² units |
| Transmission | 868 MHz RF, 150m range |
| Update Rate | Every 16 seconds |
| Power | 3 x AA batteries (not included) |
| Battery Life | 12-18 months typical |
| Weather Rating | All-weather outdoor use |
| Feature | YC9389 Advantage |
|---|---|
| UV & Light Sensors | Most £100 stations don't include these premium sensors |
| 150m Range | 50% longer than typical 100m stations |
| Beaufort Scale | Professional wind force interpretation |
| Weather Indices | Heat index, wind chill, dew point calculated automatically |
| 24-Hour History | Track hourly patterns, not just current data |
| Multiple Alerts | 7 different alert types for comprehensive warnings |
| MSF UK Version | Guaranteed UK atomic clock compatibility |
| 7 Languages | Perfect for international households |
A: The forecast uses barometric pressure trends and is typically 70-80% accurate for 12-24 hours ahead. Accuracy improves after the station learns local patterns (allow 2 weeks). It's most accurate for predicting rain/storms via pressure drops.
A: No! The YC9389 is completely standalone with wireless RF technology. The MSF clock signal is a radio signal (not internet), and the 868 MHz sensor communication requires no WiFi. This makes it perfect for remote locations.
A: Yes, the 868 MHz signal penetrates most building materials. However, metal structures, thick stone walls, or multiple walls may reduce range. The 150m specification is line-of-sight; expect 50-100m through typical house walls.
A: Simply insert batteries and wait. The clock automatically searches for the UK MSF signal (transmitted from Anthorn, Cumbria). Best reception is at night. If signal is weak, manually set time and the station will still auto-adjust for DST.
A: Console: 6-12 months (depending on usage). Outdoor sensor: 12-18 months. We recommend quality alkaline batteries. Battery life reduces in extreme temperatures (below -10°C). Low battery indicators alert you when replacement needed.
A: Yes! The YC1137 sensor is designed for permanent outdoor installation in all UK weather conditions including rain, snow, frost, and wind. However, the battery compartment must be properly sealed after battery changes.
A: Yes, but ensure the shed is at least 10 meters from your house and other obstructions. Shed roofs can absorb/radiate heat affecting temperature readings. A standalone pole mount 2-3m high in an open area gives most accurate readings.
A: Absolute pressure is what the sensor actually measures. Relative pressure is adjusted to sea level for weather forecasting and comparison with official stations. Use relative pressure for forecast accuracy.
YC9389 vs Basic Weather Stations (£50-70):
YC9389 vs WiFi Models (£120-150):
Download the User Manual from here
Download the Comparison Chart with other models from here
The YC9389 gives you everything you need:
