Introduction to Sensor
The CS125 is a compact infrared forward-scatter sensor designed to measure visibility and present weather conditions with high reliability. Suitable for both stand-alone deployments and integration with automatic weather stations, it supports a wide range of monitoring applications across road, marine, and airport environments. The sensor is supplied with a factory-attached 5 m (16.4 ft) cable and a DB9 connector, enabling quick installation and straightforward connectivity to compatible systems.
Specifications
Specifications
Operational | |
| Maximum Reported Visibility | 100 km (62.1 mi) |
| Minimum Reported Visibility | 5 m (16.4 ft) |
| Resolution | 1 m (3.28 ft) |
| Outputs | Present and past weather: identifies as standard mist, fog, drizzle, freezing drizzle, drizzle and snow, rain, freezing rain, rain and drizzle, rain and snow, and snow. 57 SYNOP present weather codes and associated METAR and NWS present weather codes – hail detection; past weather codes. |
| Accuracy |
|
| Precipitation Detection Sensitivity | 0.05 mm/h |
| Accumulation Reporting Range | 0 to 999.9 mm (0 to 39.37 in.) |
| Accumulation Accuracy | ±15% (against factory calibration standards in the laboratory, for liquid precipitation) |
| Accumulation Resolution | 0.1 mm (0.0039 in.) |
| Rain Intensity Range | 0 to 999.9 mm/h (0 to 39.37 in./h) (The maximum intensity reported is dependent on the mixture of precipitation falling.) |
| Intensity Accuracy | ±15% (against factory calibration standards in the laboratory, for liquid precipitation) |
| Intensity Resolution | 0.01 mm/h (0.00039 in./h) |
| Operating Temperature Range | -25° to +60°C (standard) |
| Extended Operating Temperature Range | -50° to +70°C or -40° to +70°C |
| Operating Humidity | 0 . . . 100% |
| Operating Wind Speed | Up to 60 m/s |
| Sensor Sealing | Rated to IP66 |
| Total Unit Power | Less than 3 W while sampling continuously (including dew heaters) |
Features
Applications
Road & Highway Weather Systems
Marine & Coastal Weather Stations
Environmental Monitoring Sites
Transportation Infrastructure Monitoring
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