Skywatch GEOS #11 Handheld Weather Station

Perhaps the ultimate in handheld weather stations, the Skywatch GEOS measures it all – Wind Speed, Wind Direction, Temperature, Relative Humidity, Barometric Air Pressure, and Altitude. And all while recording the maximum and minimum for each.

The Skywatch GEOS is also able to provide the following important calculations: windchill, dew point, relative and absolute pressure, weather tendencies, density altitude, flight level, height, and variometer. Another benefit to the GEOS 11 is the bright LED light, that is powered by a separate (and included) battery. And the weather resistant aluminum case is built to withstand the rigors of outdoor use. It can even be submerged down to 1 meter for up to 5 minutes without any difficulty – just make sure to dry out the humidity sensor before trusting those measurements. Other features include the EL backlight, mineral glass screen, time, date, chronograph, 3 data recording modes, replaceable ball impeller, and exposed sensors for instant readings.

For better information management you can purchase the optional PC download kit with software, sold below. The PC download kit with software allows you to download previously captured data or even view real-time data capture.

SPECIFICATIONS AND ACCURACIES:

Measurement	Range	Accuracy	Resolution	Response time	Measuring units
Windspeed	0 to 300 km/h 0 to 186 mph	+/- 2%	0.1 unit to 99.9 1 unit 100 and above	Instant	km/h (kilometers per hour) m/s (meters per second) knots Beaufort (scale of 0-12) mph (miles per hour) fps (feet per second)
-	-	-	-	-	-
Temperature	-40°C to +85°C -40°F to +185 °F	± 0.5°C at 25°C	0.1 unit to 99.9 1 unit 100 and above	Dependant on air flow*	°C (degrees Celsius) °F (degrees Fahrenheit)
-	-	-	-	-	-
Humidity	0.1 to 100% rH	+/- 2% at 50% rH	0.1% rH	Dependant on air flow*	rH (% Relative Humidity)
-	-	-	-	-	-
Pressure	10 to 1100 hPa 0.30 to 32.48 inHg	+/- 0.5% at 25°C	0.1 hPa 0.01 inHg	Instant	hPa (hectopascal) inHg (inches of Mercury)
-	-	-	-	-	-
Altitude	-1,000 to 21,535 m -3,280 to 70,653 ft	+/- 0.5% at 25°C	0.1m; to 2,999 m0.5m; from 3,000 to 9,999 m1m from 10,000 to 21,535 m	Instant	m (meters) ft (feet)
-	-	-	-	-	-
Density Altitude	-	-	1 unit	Instant	ft (feet) m (meters)
-	-	-	-	-	-
Variometer	-	-	0.1 unit	Instant	m/s (meters per second) hft/min (100 feet per minute)
-	-	-	-	-	-
Compass	0 to 359° off N	+/- 3°	1°	Instant	degrees off North

* Response time for temperature and humidity is highly dependant on the air flow over the exposed sensors. With air flow, response time is within a few minutes to adjust to ambient temperature and relative humidity. With no air flow, several minutes may be required to adjust properly.

Operating Temperature:
Normal Operating Temperature: 14deg F to +158deg F
Reading of display still possible: -4deg F to 14deg F
Slow reading of display, but instrument still working: -40deg F to -4deg F

Power:
Instrument: 1 button lithium battery 3V CR2032
LED Light: 1 button lithium battery 3V CR2032
INCLUDED: 4 button lithium batteries 3V CR2032 (1 spare for instrument, 1 spare for light)

Dimensions: 1.81in x 4.73in x 1.26in
Weight: 6 oz.
Impeller Diameter: 17.8mm (replaceable)

GEOS PC Download Kit

This kit includes the contactless adapter cable and software for data downloads or real-time viewing of data capture. This kit only works with the Skywatch GEOS #11, sold above.

How an Altimeter Works / Predicting The Weather / Choosing An Altimeter / How To Use An Altimeter / Return Policy

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