Anti-theft devices, namely, a tamper-proof electrical circuitry component including a pressure switch embedded within a protective sleeve used to prevent theft of copper; anti-theft devices, namely, a tamper-proof electrical circuitry component including a pressure switch embedded within a protective sleeve used to prevent theft of copper coil from an air conditioning unit; and, anti-theft devices, namely, a tamper-proof electrical circuitry component including a pressure switch embedded with...