company insight   sponsored by OPtical scientific Incorporated

OSI – Accuracy, Reliability, Portablity
Atmospheric Field Data for Operational Support

With over 30 years of ground-breaking research, with NASA, NOAA, U.S. Army, and Air Force, Optical Scientific, Inc. (OSI) has developed a group of advanced optical sensors, present weather sensors, and AWOS systems with a global reputation for accuracy and reliability. OSI is a recognized leader in the international market.

OSI sensors and systems are widely used in atmospheric observation and data collection for commercial, industrial, military, scientific, and aerospace applications. We have established an international reputation for

  • Air flow and weather sensors for remote sensing and environmental monitoring
  • Modular Automated Weather Observing Systems (MAWOS) scalable for every application from helipad to international airport.
  • Long range Optical Anemometers (LOA) for large scale crosswind and turbulence detection
  • Providing sensors and systems designed specifically for customer applications.


A miniaturized version of our best-selling OWI-430 Present Weather/Visibility sensor. Capable of being carried in a back pack, this rugged, reliable, sensor is quick to set up, and operates unattended. Developed for the US Army, this compact package delivers performance equaling our full-sized sensors. it provides accurate weather data from field locations. Scintillometric measurement and intelligent algorithm based on 20 million-plus hours with battery or solar power options makes OWI-650 the go-to weather sensor for field operations.

HazMet 100

HazMet 100 system is a portable atmospheric sensor station designed for use in the event of a hazardous chemical release, environmental emergency, or gas attack. Equipped with EPA’s ALOHA dispersion modeling program, HazMET100 can be deployed and transmitting atmospheric data within minutes. With optional OWI-650 (developed specifically for the US Army) it can be easily transformed into a portable tactical weather station.

HazMeT100 portability makes it a premier choice for situations where speed in redeployment is necessary. Mounted on a moving platform, it will also transmit data showing heading, pitch & roll, ground speed, relative wind speed and direction.

The system features: WX-200 multi-sensor, control enclosure with microprocessor, radio link, and rechargeable battery. The systems are equipped with long range spread spectrum radio sending wind speed, direction, air temperature, and other sensor data to a remote base site. Line-of-sight range is up to 9 miles. An optional high gain antenna increases the range to 28 miles.

In wired operation, a serial connection drives a WeatherCaster™ graphic display program that includes GPS location, barometric pressure, humidity, wind chill factors, and dew point information.

Whether wired or wireless, HazMet 100 systems are capable of operating as stand-alone units, or as a networked array covering as wide an area as may be required.


MAWOS (Modular Automated Weather Systems) are designed for continuous weather reporting in commercial and tactical aviation applications, the system is flexible, robust, easily installed, and extremely reliable. MAWOS is designed to FAA Advisory Circular 150-5220.16D and Canadian CAR 804.01(c) Options from simple AWOS A to AWOS IIIP available.

The MAWOS is a modular system. Typical options include:

  • Dual Barometric Pressure Sensor
  • Wind Speed / Direction
  • Temperature / Relative Humidity
  • Ceilometer
  • Present weather / Visibility

Other options can be added at customer request.

All MAWOS can be equipped with multilingual voice reporting, VHF ground-to-air radio, telephone, cell phone, and Ethernet interface. The OWI-432 present weather and visibility sensor is included in most typical configurations.

LOA - 005

The Long-baseline Optical Anemometer measures path-averaged crosswind and turbulence from distances of 100 meters to over 10 km. Using optical scintillation technology, LOA provides true remote sensing of turbulence and crosswind measurement for perimeter monitoring, artillery calculations, image enhancement, and aircraft wake vortex measurement. LOA has been used at Aberdeen Proving Ground, Sandia Labs, White Sands Missile Range, Argonne National Laboratories and many others.

LOA is a rugged, reliable sensor, immune from typical error mechanisms. Constant internal diagnostics alert the user to any signal deviation. With its advanced DSP-based design, no field calibration is ever needed.

LOA sensors are based on advanced technology tested and approved by the National Oceanic and Atmospheric Administration (NOAA), the Environmental Technology Laboratories (ETL), the National Institute for Standards and Technology (NIST) and the U.S. Environmental Protection Agency (EPA).

Optical Scientific, Inc. began in 1985 as a small tightly-knit company serving a predominantly U.S. customer base. Today it is still tightly knit - serving thousands of customers from mining to aerospace in every part of the globe. Our patented technology and constant attention to meeting customer needs (often in critical processes) makes us the best in the world at what we do. We can do it for you.

get in touch!

Optical Scientific, Inc.

2 Metropolitan Court

Suite 6

Gaithersburg, MD 20878 USA

Tel +01 301 963 3630

Fax +01 301 948 4674