Safety Technology International, Inc. - STI 9620 Motion Detector Damage Stopper, protective steel wire guard for motion detector units. 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 decor. Simple removal for servicing detector. Measures: 6.25" x 4.0" x 2.25". Three year guarantee against breakage in normal use. For greater protection against vandalism tamper resistant screws and installation bit are also available (Screws: STI model SUB-82; Installation Bit: STI model 19038) both sold separately. Safety Technology International, Inc. "We protect the things that protect you"