Transmissometer
High-accuracy Transmissometer for Runway Visual Range (RVR) and airport visibility monitoring, combining eMOR forward-scatter technology, automated calibration and aviation-grade optical measurement for critical low-visibility operations.
Typical Applications
- Runway Visual Range (RVR) systems
- Airport visibility monitoring
- CAT I, II and III runway operations
- Automated Weather Observing Systems (AWOS)
- Low-visibility airport operations
- Aviation meteorological monitoring
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Transmissometer
High-accuracy Transmissometer for Runway Visual Range (RVR) and airport visibility monitoring, combining eMOR forward-scatter technology, automated calibration and aviation-grade optical measurement for critical low-visibility operations.
Typical Applications
- Runway Visual Range (RVR) systems
- Airport visibility monitoring
- CAT I, II and III runway operations
- Automated Weather Observing Systems (AWOS)
- Low-visibility airport operations
- Aviation meteorological monitoring
The Transmissometer provides highly accurate aviation visibility and Runway Visual Range (RVR) measurement by determining the atmospheric extinction coefficient along a calibrated optical path. The 8400-eMOR system combines precision transmissometer technology with forward-scatter visibility sensing, automated alignment and calibration, and ICAO-certified frangible mounting to provide dependable visibility information for airport meteorological systems, AWOS and low-visibility runway operations.
Key Features
- Highly accurate atmospheric visibility measurement
- Designed for Runway Visual Range (RVR) reporting
- Meets ICAO and WMO RVR guidelines
- CAT III-B operational capability
- Integrated forward-scatter eMOR technology
- Precise automatic alignment and calibration
- ICAO-certified frangible aluminum mounting masts
- Built-in system diagnostics and status monitoring
- Heated optical-window conditioning for severe weather
The eMOR system combines transmissometer and forward-scatter measurements so the most appropriate sensing technology can be used across changing visibility conditions, while the forward-scatter sensor also supports automatic transmissometer calibration.
Product Models

Transmissometer 8400-eMOR
- Model 8400-eMOR Transmissometer
- Measures atmospheric extinction coefficient for Runway Visual Range
- Meteorological Optical Range from 10 to 10,000 m on 30 m baseline
- Transmissometer measurement accuracy ±1% of reading
- Integrated forward-scatter sensor for eMOR measurement
- Automatic or manual calibration and alignment
- High-intensity white LED optical transmitter
- RS-232 and RS-485 communications
- ICAO-certified dual aluminum lattice mounting masts
- Heated window-conditioning system for fog, rain and snow
- CAT III-B operational capability
- Available in 120 VAC and 240 VAC configurations
The Transmissometer provides highly accurate aviation visibility and Runway Visual Range (RVR) measurement by determining the atmospheric extinction coefficient along a calibrated optical path. The 8400-eMOR system combines precision transmissometer technology with forward-scatter visibility sensing, automated alignment and calibration, and ICAO-certified frangible mounting to provide dependable visibility information for airport meteorological systems, AWOS and low-visibility runway operations.
Key Features
- Highly accurate atmospheric visibility measurement
- Designed for Runway Visual Range (RVR) reporting
- Meets ICAO and WMO RVR guidelines
- CAT III-B operational capability
- Integrated forward-scatter eMOR technology
- Precise automatic alignment and calibration
- ICAO-certified frangible aluminum mounting masts
- Built-in system diagnostics and status monitoring
- Heated optical-window conditioning for severe weather
The eMOR system combines transmissometer and forward-scatter measurements so the most appropriate sensing technology can be used across changing visibility conditions, while the forward-scatter sensor also supports automatic transmissometer calibration.
Additional information
| Models | Transmissometer 8400-eMOR |
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