Introduction to Sensor
The CS120A visibility sensor employs reliable infrared forward-scatter technology with a proven 42° scatter angle to accurately determine meteorological observable range (MOR). It delivers precise visibility measurements across a wide range—from dense fog conditions to clear-air distances—covering 5 to 75,000 m. Designed to offer high performance at a competitive cost, the CS120A is well suited for both stand-alone deployments and integration with automatic weather stations.
Specifications
Specifications
| Signal Type/Output | RS-232, RS-485 |
| Measurement Description | Meteorological Observable Range (MOR) |
| Maximum Reported Visibility | 100 km (62.1 mi) |
| Minimum Reported Visibility | 5 m (16.4 ft) |
| Accuracy |
|
| Resolution | 1 m (3.3 ft) |
| Mounting | Stainless-steel V-bolt bracket that attaches to a pole with a 32 to 52.5 mm (1.25 to 2 in.) outer diameter |
| Electronics Supply Voltage | 7 to 30 Vdc |
| Total Unit Power | < 3 W while sampling continuously (including dew heaters) |
| Standards | Frangible masts are available to customer requirements to meet ICAO recommendations (typically placing the sample volume at 2.5 m [8.2 ft]). |
| Sensor Dimensions | 540 x 640 x 246 mm (21.26 x 25.2 x 9.7 in.) including mount |
| Sensor Weight | ~3 kg (6.6 lb) depending on mounting system |
Features
Applications
Road Weather Systems
Renewable Energy Sites
Meteorological Stations
Coastal Monitoring
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