Safety Technology International -STI 9618 Motion Detector Damage Stopper, Corner Mount, Protective Coated Steel Wire Guard - This super tough cage is recommended for areas where abuse to motion detectors is severe or continuous operation is essential. Proven extremely effective in reducing malfunctions and high maintenance costs where vandalism or accidental damage is prevalent. Constructed of heavy duty, 9-gauge steel wire with corrosion resistant polyester coating. Won’t interfere with effective range of motion detector. Fast and easy installation. May be spray-painted prior to installation to match décor, simple removal for servicing detector. Three year guarantee against breakage in normal use. Safety Technology International, Inc. "We protect the things that protect you"