This sign reads "Fire System To Be Activated Prior To Using Extinguisher". Dimensions: 5" x 3". This sign is used in commercial kitchens that have automatic extinguishing systems. Paragraph 184.108.40.206 of the 2017 edition of NFPA 17A states that placards indicating that fixed systems should be activated prior to using an extinguisher should be posted near the Class K extinguisher (see item # 09540).
The sign is silk-screened and then oven baked for added durability. Features include smooth finished edges, rounded corners. and pre-drilled mounting holes.