ZEPHIR300 Remote Sensing Wind Measurement Lidar for Meteorological Applications
Proven Extreme Operation
Industry-recognized validations
weather applications water applications energy applications gas flux & turbulence applications infrastructure applications soil applications


The ZephIR 300 is a continuous-wave (CW) lidar system that provides remote wind measurements across ten user-defined heights from 10 m to 200 m. It is ideal for applications that require wind measurements at multiple heights, and for locations where the installation of a tall tower is difficult.

The ZephIR 300 has been used worldwide for site assessment, prospecting, and turbine micrositing; extreme flow conditions; power-curve assessment; permanent wind-farm anemometry; and complex site analysis. For more information, see the ZephIR Lidar website at www.zephirlidar.com.

A Performance Verification Certificate is also available for purchase. Contact the Renewable Energy Group at Campbell Scientific for more information.

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Benefits and Features

  • Remote wind profiling across 10 user-defined heights from 10 m (33 ft) to 200 m (656 ft)
  • Accurate measurements at the heights that count
  • Proven extreme operation from -40° to +50°C across 450 lidar deployments globally
  • IP67-rated enclosure sealed against moisture and ingress
  • Measures 50 data points every second across a full 360-degree scan providing the high sample rate advantageous in complex and fast changing air flows


Detailed Description

The ZephIR 300 is calibrated to an industry-approved standard. Its proven technology has been rigorously tested via IEC equivalent power performance measurements, extensive onshore/offshore sites, and tall mast (193 m) verifications.

Measurement Technique

The ZephIR 300's infrared beam illuminates natural-atmospheric aerosols such as dust, pollen, or rain droplets. When the infrared beam hits these aerosols, some light is backscattered into a receiver. Wind affects the motion of these aerosols, and changes the backscattered light’s frequency. This frequency shift is measured by a photo-detector, and from these measurements, wind speed and direction are calculated.



Measurement Height Range 10 to 200 m (33 to 656 ft)
Probe Length
  • 0.07 m (0.23 ft) @ 10 m (33 ft) measurement height
  • 7.70 m (25.26 ft) @ 100 m (328 ft) measurement height:
Number of Measurement Heights 10 (user-configurable)
Sampling Rate 50 Hz
Averaging Period 1 second upwards (user-configurable)
Scanning Cone Angle 30°
Wind Speed Accuracy < 0.5% (as measured against a calibrated moving target)
Wind Speed Range < 1 to 70 m/s
Wind Direction Accuracy < 0.5°


Temperature Range -40° to +50°C
Power Consumption 69 W
Input Power Range 9.5 to 13.5 Vdc or 90 to 264 Vac
Weight 55 kg (121.3 lb)


10 Minute Averaged Data 80 kB/day
3 Second Data 3 MB/day


Laser Classification Class 1
Eye Safety Standard IEC 60825-1
IP Rating IP67 (excludes external fans)
EMC Compliance EN55022 Class A, EN61326 Industrial, FCC Radiated and Conducted Emissions


Datalogger Considerations

Compatible Dataloggers

CR1000 CR3000 CR5000 CR1000X

CR7X CR9000X CR6 CR300

Frequently Asked Questions

Number of FAQs related to ZEPHIR300: 4

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  1. Campbell Scientific is the exclusive distributor of ZephIR 300 systems in North America, providing sales, support, and service. Campbell Scientific and Zephir engineers also work closely together on current product features and product development.

  2. Yes. Contact Campbell Scientific for pricing and availability.

  3. The ZephIR 300 is compatible with the CR3000, CR1000, CR800, and CR850 dataloggers. These dataloggers can communicate with the ZephIR 300 to pull data and make it available through the datalogger, while simultaneously making other environmental measurements. This functionality gives users the ability to collect their ZephIR 300 data in the same manner as with their existing Campbell Scientific equipment. Users are also able to retrieve ZephIR 300 data through other methods, protocols, etc., that are compatible with Campbell Scientific dataloggers.

  4. The ZephIR 300 is a LiDAR (Light Detection And Ranging) measurement system used to make wind speed measurements at user-configurable heights between 10 to 200 m. The ZephIR 300 is a coherent LiDAR that uses continuous-wave technology to gather high-quality wind-speed data. The ZephIR 300 is well suited for both onshore and offshore applications, and it has a proven design with over three million hours of operation and 650 deployments in extreme conditions across the globe.