Inspectors Test Decals are NFPA 13-compliant self-adhesive decals designed to indicate the location of an inspector's test valve to fire professionals. This 6 in. x 2 in. (152.4 mm x 50.8 mm) decal reads 'Inspectors Test' in red letters at least one inch (25.4 mm) in height.
In accordance with NFPA 13 and NFPA 14, this sign is permanently marked and made from weather-proof material. Inspector's test valves are used to ensure that a water flow alarm, pre-action valve, and other sprinkler system components are fully operational.