This Pointer-type automatic AC relay voltage stabilizer integrates an automatic coupling regulator, sampling control board, and actuator. It features a compact, lightweight design, minimal output waveform distortion (low THD), and rapid response speed. Optimized for household appliances—including air conditioners, refrigerators, TVs, and audio systems—it protects equipment and extends service life. The stabilizer incorporates comprehensive protection against: Overcurrent Over-temperature Leakage Short-circuit Overload Delayed startup (surge protection) With extremely low power consumption and continuous operation capability, it delivers a reliable, energy-efficient power solution for modern homes.