1.Highquality materials: the voltage stabiliser is made of highquality plastic material, which is strong and durable and also has a long life. 2.Wide application: the voltage stabiliser supports surge protection, undervoltage protection and voltage display, also supports voltage measurement. It supports the selection of recovery mode, error retrieval and factory reset function and can provide you with more convenience. 3.Features: Both overvoltage and undervoltage protection values and recovery values are adjustable, and the action time of the overvoltage and undervoltage protection is also adjustable. The error elimination delay time and switchon delay time are adjustable. 4.Automatic shutdown: When the power supply is unstable, the protection function is automatically activated. Once the voltage exceeds a limited number of products, it will automatically shut off to protect the of electrical equipment and personnel.