Technical Data; Explanation Of Terms - elv WS 300 Bedienungsanleitung

8. Technical data

Measurement interval for outdoor sensors: ..................................... approx. 3 min
Measuring interval for indoor sensor: ........................................................ 10 min
Transmission frequency: .................................................................... 868.35 MHz
Free field range: .................................................................................. max. 100 m
Indoor temperature range: ............................................................0 ˚C to +79.9 ˚C
Resolution: ................................................................................................... 0.1 °C
Accuracy: ................................................................................................... ±0.8 ˚C
Outdoor temperature range (KS 300): .................................... -29.9 ˚C to +79.9 ˚C
Resolution: ................................................................................................... 0.1 °C
Accuracy: ................................................................................................... ±0.8 ˚C
Measuring range for relative humidity (indoor/outdoor): ...................... 0% - 99 %
Resolution: ....................................................................................................... 1%
Accuracy: ....................................................................................................... ±5%
Rainfall indicator: .............................................................................. 0 to 999 mm
Analysis interval: ................... last hour: at xx:30 hours, total for day: at 7.30 a.m.
Resolution: ............................................................................................. < 0.3 mm
Wind speed: ...................................................................................... 0 - 200 km/h
Resolution: .............................. up to 100 km/h: 0.1 km/h; over 100 km/h: 1 km/h
Voltage supply:
Base station ................................................................... 4 x 1.5 V Mignon battery
KS 300: .......................................................................... 3 x 1.5 V Mignon battery
Dimensions (W x H x D) of base station: ... 160 x 220 x 35 mm (excluding stand)

9. Explanation of terms

Perceived temperature - see Wind chill
Dew point - Temperature point that is dependent on the conjunction of a specific
air pressure, a specific temperature and a specific humidity. At this temperature
humidity begins to condense, the so-called dew, the humidity condenses and
precipitates as a liquid. If the dew point for water vapour is less than 0 °C, the
condensation occurs as snow or frost.
Weather forecast - Forecast display using weather symbols, calculated from the
speed at which the air pressure rises or falls (tendency).
The speed of change of air pressure is the critical factor for the prediction of the
coming weather; the absolute value is of secondary importance. In general, it can
be said that rising air pressure indicates better weather, while falling air pressure
indicates deteriorating weather.
Wind chill equivalent temperature (perceived temperature) - A fictitious
temperature, which the human body feels under certain conditions instead of the
measured temperature, and which can be used at low temperatures (e.g. less than
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