Highly durable wire guard increases the productivity of devices while also helping to protect against vandalism, damage and theft. Constructed of tough, 9-gauge steel wire coated with corrosion resistant polyester. Low profile cage is recommended for areas where abuse is severe or it is imperative important devices continue to operate for safety of building occupants. It is easy to install, for surface mounted applications, and allows the LED indicator to remain clearly visible. UL Listed and MEA Approved.