The medium sized Ductwork 4000 model designed for residential or commercial HVAC systems with a coverage capacity up to 4,000 square feet.
DUCTWORK Application: Residential/Commercial HVAC systems
Electrical: 120/240VAC, 50/60Hz Watts: 20
Mechanical: Bulb monitoring system
Dimensions: From 9.62"H x 9.62" W x 7.48" L to 11"H x 11" W x 17" L
Weight: From 6 lbs.
Coverage: 4,000 square feet
Owner's Manual
Most models are made in the United States of America.