Our bestseller Cloud Ceilometer CBME80B

Cloud Ceilometer CBME80B 

Cloud Ceilometers
The Eliasson cloud ceilometer CBME80B is a compact and lightweight standalone instrument designed for fixed and mobile installations where accurate and reliable cloud height information is required.

The design is based on the LIDAR principle. The light emitting component is a low power diode laser with the output power limited to an eye-safe level. Real time digitizing technique is employed in signal detection and powerful microprocessor in combination with a FPGA is used in signal processing.

Data presentation 

CBME80B has outputs for different types of display and recording units. An RS-232 and RS-485 interface supports local control, test and data acquisition. For remote control and data acquisition there is a built-in FSK modem.


A built-in test system indicates failures in the event of a malfunction. The electronics are located in three easily replaceable subunits, i.e. a power unit with an EMI unit included, a master printed circuit board and a power sensor board.

The subunits, as well as the laser diode and the avalanche diode, which are placed on the master circuit board, can be replaced without realignment.


  • Reliable operation - MTBF 100 000 h
  • Easy installation and maintenance
  • Very long laser life (calc. 10 years)
  • 25 000 ft measuring range capability
  • Low weight and low power consumption

Data sheet 

Range 0 — 7 500 m / 0 — 25 000 ft
Resolution 5 m
Accuracy Greater of ±5 m or ±1% of height (against reflector)
Measuring interval 15, 30, 60, 120 seconds
Outputs RS-232, RS-485, FSK/V23
Output data Cloud height (up to three bases) or vertical visibility
Cloud amount
Ceilometer status
Backscatter profile
Operation temperature -40 — +60 °C
Power supply 115V alt. 230V, 45 — 65 Hz
(Electronics 30VA, header 200VA)
Weight 15 kg (without stand)
Laser safety Eye safe Class 1M in accordance to IEC 60825-1
Options Window blower
Solar shutter
Mobile version with local display
Housing classification: IP66
Contamination detection
Stand for fixed installation
Power supply 12V DC
Color: Military Green
Accessories Blower
Graphic program Cloud Presentation Suite (Windows)
Digital display BE360
Demodulator V.23 - RS-232C

Ceilometer CBME80B