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To contact us about OWI-432 click here
  OWI-432 Intelligent Weather Sensor

 • Present weather, precipitation and visibility measurement
 • Advanced scintillation technology
 • No field calibration required
 • Intelligent algorithms (over 200 million hours of field data.)
 • Built-in self diagnostics & testing
 • Easy Installation and integration
 • Almost no maintenance. Operates unattended 24/7/365
 • Reports over 50 NWS / WMO codes
 • Supports additional sensors                                                        

The OWI-432 is more than just a sensor, it serves as both sensor and data acquisition system. Wind, temperature, relative humidity, barometric pressure, hail and ice pellet* may be easily added. This intelligent sensor uses Digital Signal Processing (DSP) for no-drift high-accuracy results. It is the core of our MAWOS system. For MAWOS click here.

Partial List of Specifications
For full specifications and available accessories click here

Measurement Technique Scintillation with optical forward scatter and optional acoustic*

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, hail/ice pellets*

Snow / Rain Accumulation 0.001 to 999.999 mm

Rain Dynamic Range 0.1 to 3000 mm/hr

Rain Measurement Accuracy 5% accumulation

Visibility/RVR Dynamic Range 0.001 to 10+ km 0.001 to 7.1 miles

Power Requirements 11-18 VDC, 3A     (HIP-100 requires 110/220 VAC, 100 VA)*

Transient Protection All power & signal lines fully protected

Signal Output RS-232 ASCII, simple polled protocol

Temperature -40 to 122 F (-40 to 50 C)

Humidity 0 to 100%, Condensing

Precipitation / Dust NEMA 4 type protection (Powder-coated aluminum)


To go to the Weather Sensor catalog page click here


 * Hail and ice reporting available with OSI's optional HIP-100 acoustic sensor. For details click here


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