Portable, Automated Weather Station
with Low Power Consumption and Visibility Sensor
- Optical Scientific - OWI-650
The LP-AWS is an advanced, portable, Low Power Automated Weather Station built around the OWI-650 Low Power Weather Identifier and Visibility Sensor (LP-WIVIS)
The low power requirements of the OWI- 650 make it well suited for portable battery and solar powered applications. The system has been designed from the ground up for fast setup anywhere.
The OWI-650 measures visibility and detects rain, snow, drizzle, freezing and mixed precipitation conditions The OWI-650 is more than just a sensor. It is a system. No separate data acquisition system is required to add optional meteorological sensors. Implementing a portable automated weather station with weather identification and visibility sensor capability has never been easier or as cost effective.
The fully automated OWI-650 provides accurate visibility, present weather and precipitation measurements. Typical systems include other optional meteorological sensors including wind, pressure, and temperature/ humidity sensors.
OSi's patented environmentally adaptive weather identification algorithms use artificial-intelligence technology derived from over 25 years experience and over 200 million field hours of real-world data from OSi sensors installed around the world. The result is the most advanced / easily deployable Automated Weather Station with optical weather identifier and visibility sensor available.
| Features |
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| Accessories |
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| Specifications | |
| Performance | |
| Measurement | Technique Scintillation with optical forward scatter and optional acoustic* |
| Data Reporting Update Rate | 1 minute |
| Present Weather Codes Reported | More than 50 NWS and WMO codes |
| Present Weather Type Identification | Rain, freezing rain, snow, freezing drizzle, mist, mixed, fog, haze, clear |
| Snow / Rain Accumulation | .001 to 999.999 mm |
| Snow / Rain Measurement Resolution | 0.001 mm |
| Rain Dynamic Range | 0.1 to 3000 mm/hr |
| Rain Measurement Accuracy | 5% accumulation |
| Snow Dynamic Range | 0.01 to 300 mm/hr |
| Snow Measurement Accuracy | 10% accumulation |
| Visibility / RVR Dynamic Range (metric and ANSI units & extended ranges available) | 0.01 to 10+ km 0.001 to 7.1 miles |
| Visibility Contrast Threshold | 5% |
| Ambient Light Dynamic Measurement Range | 0 to 9,990 candles / m2 |
| Electronical | |
| Power Requirements | |
| Electronics | 3.6 vdc @ 375 mA |
| Heaters | 12 vdc @ 600 mA |
| Transient Protection | All power & signal lines fully protected |
| Signal Output | RS-232 ASCII, simple polled protocol |
| Environmental | |
| Temperature | -40° to 122° F (-40° to 50° C) |
| Humidity | 0 to 100% |
| Precipitation / Dust | NEMA 4 type protection |
| Physical | |
| DSP-WIVIS Sensor Size | 21 x 8 x 4 inches (53 x 20 x 10 cm) |
| DSP-WIVIS Sensor Weight | 4.25 lbs. (1.9 kg) |
| Cable Length | 12 ft. (3.7 meter) |
| Ordering Informations | |
| Cat. No. | Description |
| OWI-650-DR | DC powered, RS-232 serial I/O – specify Metric or ANSI |






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