Professional Grade Snow Measurement Instruments

No field calibration is required. OSI's all-digital DSP-based design with environmentally adaptive algorithms automatically compensates for dust, water droplets, and ice or snow accumulation on lenses. There are no moving parts and no scheduled lens cleaning required, making these instruments ideal for remote and unattended deployments with MTBF exceeding 80,000 hours.

OSI precipitation gauges and weather sensors measure snow water equivalent at a resolution of 0.001 mm with 5% accumulation accuracy. The snow measurement dynamic range spans from 0.03 mm/hr to over 500 mm/hr. Instruments operate reliably across temperatures from -50°C to 60°C, making them suitable for conditions from Antarctica to tropical environments.

Yes. The APG-815-DS and LP-WIVIS models are specifically designed for remote installations, featuring solar-compatible, low-power operation at nominal 12 VDC / max 400 mA. Adaptive Heater Technology (AHT) ensures reliable performance in extreme cold without requiring AC power. Communication options include cellular modems, satellite, and GSM for data transmission from off-grid locations.

The AWOS-AV system is fully FAA-certified and complies with FAR 91.171, FAR 91.175, and ICAO standards. The OWI-430 and OWI-430-RH DSP-WIVIS sensors meet FAA AWOS present weather requirements and are approved for integration into FAA-compliant Automated Weather Observing Systems at airports and helipads. All relevant products comply with NWS and WMO weather code standards.

Yes. OSI instruments support multiple communication interfaces including RS-232, RS-485, Ethernet, MODBUS RTU, cellular modems, satellite, and GSM. The modular OWI-432 and MAWOS platforms allow seamless integration of additional sensors such as wind speed, barometric pressure, and temperature without requiring a separate data acquisition system, facilitating straightforward integration into existing monitoring networks.

OSI instruments serve aviation (FAA AWOS), highway and transportation (DOT RWIS), hydromet and agrimet water resource management, avalanche monitoring, marine and oceanographic research, military operations, railway weather monitoring, solar and wind farm precipitation monitoring, storm water management, and ambient air quality monitoring. Trusted clients include NASA, NOAA, the U.S. military branches, and numerous state DOTs.