Terms
The OWI-650 LP-WIVIS™ has been designed from the ground up for quick deployment anywhere. The LP- WIVIS is the first present weather and visibility sensor designed for battery powered or solar powered applications.

The LP-WIVIS™ is more than just a sensor. It is a system. Other sensors including
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Unit of Measure

Performance Specifications

Measurement Technique

Scintillation with optical forward scatter and optional acoustic*

Data Reporting Update Rate

1 min

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 and ice pellets*

Snow/Rain Accumulation

0.001 to 999 mm

Snow/Rain Measurement Resolution

0.001 mm

Rain Dynamic Range

0.1 to 3000 mm/hr

Rain Measurement Accuracy (Accumulation)

5 %

Snow Dynamic Range

0.01 to 300 mm/hr

Snow Measurement Accuracy (Accumulation)

10 %

Hail/Ice Pellet Reporting Accuracy

Correct ID better than 90% of time*

Visibility/RVR Dynamic Range (Metric and ANSI Units Available)

0.001 to 10+ km0.001 to 7.1 mile

Visibility/RVR Time Constant (Harmonic)

3 min

Visibility/RVR Contrast Threshold

5 %

Ambient Light Dynamic Measurement Range

0 to 9,990 candles/m²

Physical Specifications

Cable Length

12 ft3.7 m

DSP-WIVIS Sensor Size

21 x 8 x 4 in53 x 20 x 10 cm

DSP-WIVIS Sensor Weight

4.25 lb1.9 kg

Electronic Specifications

Power Requirements

10-18 VDC

Direct Current (DC) Supply Voltage

3.6 V

Current

375 mA

Transient Protection

All power & signal lines fully protected

Signal Output

RS-232 ASCII, simple polled protocol

Heaters

Heater Direct Current (DC) Supply Voltage

12 V

Environmental Specifications

Temperature

-40 to 60 ºC-40 to 140 ºF

Humidity

0 to 100 %

Precipitation/Dust

NEMA 4 type protection

Optional Sensors

Optional Sensors

Wind Sensor 2100-130
The 2100-130 is designed to operate within a temperature range of -30º to +70º C and with wind speeds up to 167 mph (75 m/s). Wind speed is measured using a sealed reed switch which provides a series of pulses at a rate proportional to wind speed. Aluminum cups are used for durability and strength.

Temperature/RH Probe 2100-110
The Model 2100-110 temperature humidity probe offers high accuracy and is designed for meteorological applications. The probe has separate 0 - 1 VDC linear outputs for temperature and humidity.

Best Value Pressure Sensor 2100-101-1
Low cost, accurate and stable barometric pressure sensor. The glass fused ceramic capacitive sensing capsule features inherent thermal stability, and low hysteresis.

High Accuracy Pressure Sensor 2100-101-2
The Model 2100-101-2 barometric pressure sensor is designed for use in environmental applications that require excellent accuracy, fast dynamic response, and long-term stability and reliability.