The following are some of the most frequent questions asked by our customers.  If you don't see your question below, or simply need additional information, please contact us at +1 (916) 928-1000 or email us by clicking here.

AWOS - Automated Weather Observation Systems

Yes! You can download a copy of the AWOS 3000 certification letter here.


Power requirements for AWOS systems are detailed in our site preparation manual. You can download the site preparation manual specific to your AWOS level here.

The following table can be used to help electricians perform wire size calculations, and solar power requirement calculations.

Equipment Requirements
DCP (plus BP and MARS) 7.128W
900 MHz Radio 5.02W
2040 Ultrasonic (not heated) 0.72W
2040 Ultrasonic (heated) 120W
20201 (heater for 2020 & 2030 sensors) 20W
UHF Radio 1.2W
Heated Rain Gauges 325W
8339/8340 Ceilometer (no heaters, no blower) 25W
8339/8340 Ceilometer (with heaters, no blower) 200W
8339/8340 Ceilometer (with heaters & blower) 700W
6490 Present Weather Sensor (heated) 50W
6500 Lightning Sensor 20W
Visibility Sensors (no heaters) 10W
Visibility Sensors (heated) 210W
Ambient Light Sensor (heated) 100W
Central Data Platform (CDP) 300W


Contact AWI at +1 (916) 928-1000 and ask for Customer Service.  If we cannot solve your problem over the phone, you may be given a Return Materials Authorization (RMA) number and instructions for shipping your equipment.  Any equipment or parts returned to AWI without proper RMA documentation will be refused.