White coated steel Smoke Detector Damage Stopper protects smoke detectors from vandalism and damage. Constructed of heavy-duty, 1.5 mm steel, there’s no longer any reason to risk malfunction to critically important devices from accidental or intentional damage. Flush mounted, it is easy to install in areas where severe abuse is causing false fire alarms or high maintenance costs to buildings. Simple removal for servicing detector. UL Listed.