Approach Navigation Systems Inc. has installed and supported Automatic Weather Observation Systems (AWOS) at private, industrial, and public aerodromes in Canada and overseas for several years.
 
An AWOS station provides continuous real-time weather reports without human involvement for users of aviation facilities.
 
The Vaisala AWOS as supplied by ANS Inc is of the highest quality available and is deployed worldwide.  It is approved by ICAO, FAA and TC for public use. 

The attached brochures (PDF) describe the operating features and sensor specifications of the AWOS (373Kb) and of the Ultrasonic Wind Sensor (77Kb) .