8340 Laser Ceilometer

Range : 40,000 feet, 230Vac

The Model 8340 Laser Ceilometer uses a design similar to that of the 8339 however, with the addition of a more powerful laser and state-of-the-art firmware.

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– Keeping with the proven laser technology, the Model 8340 emits a laser pulse into the atmosphere and analyses back-scatter data to determine the top and bottom altitude of each cloud. In order to maintain accuracy in even the most volatile situations.
– FAA Certified models.


– Rugged, weather-proof sensors
– Accurate and reliable
– Accurately reads cloud height, density, and vertical visibility to a distance of 40,000 vertical feet.


Parameter Specification
Measurement Range Up to 40,000 ft
Resolution 12.5 ft
Accuracy ±20 ft
Cloud Layers Up to 4, base and depth
Measurement Cycle Configurable to 30, 60, or 120 seconds sampling per reporting interval; can be set to 180 seconds when no clouds detected
Operating Temperature -40°C to +60°C
Storage Temperature -50°C to +70°C
Relative Humidity 0–100%, condensing
LIDAR InGaAs, pulsed diode
Wavelength 905 ± 10 nm
Pulse Width 50 ns
Collector Type Si avalanche photodiode, variable gain, temp compensated
Optics Side-by-side optical channels
Laser Safety FDA Class I, 21 CFR1040
Power Requirements
Power Supply 95–240 V AC, 47–64 Hz, 100 W
Power Consumption With Optional Heater/Blower: 600 W
Battery Backup Ceilometer electronics only
Serial Connector Conxall® Mini-Con-X® 7280-5SG-300 Field Connector
Enclosure NEMA 4X stainless steel
Mounting Single-leg pedestal, 2.5” pipe, unistrut mounted