Intelligent Time Delay System – Gives the compressor proper balancing time during frequent power failures. Low & High Voltage Cut-off Protection – Protects connected equipment from potentially dangerous voltages. Microcontroller Technology – Assures reliable protection. Built-In Thermal Overload Protection - Protects the stabilizer and compressors from high temperature burnout. Wall Mounting Cabinet Design – Elegant and easy to install. Warranty – 3 years.