Biral SWS-100 Visibility Sensor
- robust construction
- 3 switching relays
- low power
- measurement range < 10 m to 2 km, 10 km, 20 km, 32 km or 50 km
- instantaneous and averaged Meteorological Optical Range (MOR)
- digital and analogue outputs
- 3 relays to operate alarms and other external equipment
- 24 VDC (ie battery) or optional mains (AC) powered