Ceilometer CL51

The Vaisala Ceilometer CL51 is designed to measure high-range cirrus cloud heights without surpassing the low and middle layer clouds, or vertical visibility in harsh conditions.  It´s backscatter profiling over full range is up to 15 km (49,200 ft).

The CL51 employs a pulsed diode laser LIDAR (Light Detection And Ranging) technology, where short, powerful laser pulses are sent out in a vertical or near-vertical direction. The reflection of light (backscatter) caused by clouds, precipitation or other obscuration is analyzed and used to determine the cloud base height.

Cloud reporting range up to 13 km (43,000 ft)

Backscatter profiling over full range up to 15 km (49,200 ft)

Detection of Cirrus clouds

Based on robust and affordable laser technology

Extensive self-diagnostics with fault analysis

Field proven, fully automatic 24/7 operation in all weather conditions

Extensive self-diagnostics with fault analysis

Second-generation, advanced single-lens optics provides excellent performance also at low altitudes

Modular design for easy installation and maintenance

Reliable operation in all weather; unsurpassed performance in vertical visibility and cloud detection during precipitation

Latest technology from the world leading manufacturer - installed base over 5000 ceilometers worldwide