SPECIFICATIONS
Main Unit
Indoor Temperature
Operating range: 23.0°F to 122.0°F (-5°C to +50°C)
Temperature resolution: 0.2°F (0.1°C)
User-selectable (°F or °C) temperature display
Humidity (Indoor)
Operating Range: 30% to 80%
Resolution: 1%
Accuracy: 7%
Sampling Interval: 10 seconds
Weather Forecast: in seven large icons: sunny, slightly cloudy,
cloudy, rainy, heavy rainy, snowy and heavy snowy.
Maximum number of remote sensors: 3 (one included)
Readings update interval: every 45 seconds
Low battery indicator
Clock
Precise atomic time
4 US Time Zones
12/24 hour time format
Crescendo 2 minutes alarm with 8 minutes snooze
Barometric Pressure
Measuring Range: 14.75 inHg to 32.44 inHg (500 Hpa to
1100Hpa); (374.5 mmHg to 823.8 mmHg)
Resolution: 0.003 inHg (0.1 Hpa, 0.08 mmHg)
Accuracy: 0.015 inHg (5 Hpa; 0.38 mmHg)
Sampling interval: 20 minutes
Altitude Compensation Range: -657 ft to 16404 ft (-200m to
+5000 m)
Remote Sensor
Remote Temperature
Operating range with alkaline batteries:
-4°F to + 158°F (-20°C to + 70°C)
Operating range with lithium batteries:
-38.8°F to +158°F (-38.8°C to + 70°C)
Temperature resolution: 0.1°C/0.2°F
Humidity (Outdoor)
Operating Range: 30% to 80%
Resolution: 1%
Accuracy: 7%
Sampling Interval: 10 seconds
Transmitting Interval: around 47 seconds
RF Transmission Frequency: 433 MHz
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