Molded of clear polycarbonate material, this protective cover is recommended for areas where abuse to a thermostat exists. This may include vandalism, accidental damage or costly, annoying tampering by employees and guests. Especially useful where thermostats are located in public areas, this cover with 1/4 turn lock is easy to install. Holes in the frame allow air to circulate freely for proper operation of protected thermostats or energy sensors. An interior wall on the frame prevents objects from entering and tampering with the protected thermostat. As all STI polycarbonate covers, this tough unit is backed by a three-year guarantee against breakage in normal use. The Thermostat Protector is shipped complete with all mounting hardware.