' Carbon Monoxide Detector Tester, Provides Aerosol for Functional Testing of Carbon Monoxide Detectors with Built In Speed Up Feature, For Use With Residential or Commercial Detectors, Height 6 In., Length 10 In., Width 8 In., Operating Temp. 50 Degrees to 95 Degrees F, Standards UL/ULC, Manufacturers Warranty Length 1 yr. '