8339 Laser Ceilometer

Range : 25,000 feet, 220Vac

The 8339 Series of Aviation Grade laser ceilometers are designed to provide accurate cloud height, cloud layer thickness, and vertical visibility measurements.
The AWI 8339 Aviation Grade cloud height laser ceilometer is FAA Certified and meets the recommendations of both the International Civil Aviation Organization (ICAO) and the World Meteorological Organization (WMO).
Over 2,000 laser ceilometers are fielded world-wide and operationally provide safer airspace to the flying community.

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– Its precision makes it ideal for applications requiring the highest level of performance and reliability, such as aviation and meteorological studies.
– Proprietary algorithms and digital techniques developed over more than 20 years of cloud detection research and manufacturing, allowing the Model 8339 laser ceilometer to provide accurate information even in difficult circumstances.


– Unlike other ceilometers, the Model 8339 detects up to four cloud layers simultaneously to a distance of 25,000 vertical feet.
– The Model 8339 executes an array of self-tests during operation, which detect faults and reports them.
– These self-tests also identify the replaceable module associated with the fault, making trouble-shooting and repair as simple as possible.


Parameter Specification
Measurement Performance
Observation Range 0 … 7.6 km (0 … 25,000 ft)
Backscatter Profiling Range 0 … 7.6 km (0 … 25,000 ft)
Reporting Resolution 4 m (12 ft)
Reporting Interval 30, 60, or 120 seconds or when polled
Distance Measurement Accuracy Against a Hard Target Greater of ±1% or ±4 m (12 ft)
Laser InGaAs Diode
Wavelength 905 Nm +/- 10 nm
Pulse Width 50 ns
Operating Environment
Temperature Range -40 … +60 °C (-40 … +140 °F)
Humidity 0 … 100 %RH
Wind Up to 65 m/s (145 mph) (125 kts)
Inputs and Outputs
Power Input Operating Voltage 100/115/230 VAC ± 10%
Power Input Frequency (Min/Max) 45 … 65 Hz
Back-Up Battery Internal, 12 V, 5 Ah
Data Output Options RS-232/RS-485, multidrop, 2-wire
Maintenance Data Output RS-232
Data Messages Cloud hits (up to 4 layers) and status information, backscatter, and Sky condition
Maintenance Data Output Cloud hits, status, and backscatter profile; Cloud hits and internal monitoring data
EMC CE EN 61326 04, EN55011, EN 61326 04, IEC 61000-4-2, IEC 61000-4-3, IEC 61000-4-4, IEC 61000-4-5, IEC 61000-4-6, IEC 61000-4-8, IEC 61000-4-11
Electrical Safety CE IEC/EN 61010 – 1
Eye Safety FDA Class I, 21 CFR 1040, Class 1M IEC/EN60825-1
Mechanical Specifications
IP Rating IP66 (NEMA 4X)
Enclosure Stainless Steel
Mounting Single leg pedestal; 6.35 cm (2.5 in) pipe; frangible (optional)