Alti-Windwatch – Technical data

Temperature

• range of temperature measuring: -20 °C up to +55 °C (-4 °F up to +131 °F)
• scale of temperature display: 1 °C (1 °F)
• accuracy of temperature measuring: ± 2 °C (correctable)

Wind speed

• wind speed measuring: from 1 m/s up to 40 m/s (145 km/h)
• scale of wind speed measuring: 0,1 m/s
• update rate of wind speed measuring: every second
• computation time for the average wind speed: 5 up to 60 seconds in 5-second intervals
• accuracy of wind measuring: ± 4% (correctable)

Barometer

• display of atmospheric pressure: hPa or inHg
• setting range of atmospheric pressure display: 900 – 1100 hPa (26.60 – 32.49 inHg)
• update rate of atmospheric pressure display: 4x per hour
• scale of air pressure display: 1 hPa or 0,01 inHg

Power supply

• battery type: 3V-Lithium-battery, type CR2032v (included in scope of supply)
• battery service life: approx. 2 years
• automatic warning upon low battery state of charge

Housing

• ABS plastic
• size: 10,3 x 4,5 x 1,8 cm (3,93 x 1,57 x 0,70 in)
• weight: approx. 45 g (incl. battery)
• water resistant
• the wind sensor is fully protected by simple turning

Miscellaneous

• fixing cord: included in scope of supply
• warranty: 2 years