Features: Integrated overcurrent protections, metering protections, temperature protections, timed shutdown, and automatic reset, fully ensuring household electrical safety and equipment lifespans. The set overvoltage (130-300.0V) and undervoltage (80-210V) ranges ensures that the equipment operates at safe voltages and effectively prevents electrical faults. Users can adjust the protections voltages ranges on their own to meet the usage needs of different devices and enhances practicality. Adopting PA66 flame retardant shell, it has excellent impacts resistance, heat resistance and low temperature resistance, suitable for use in various environmental conditions. The built-in control chip can monitor voltages in real time and display excess conditions, automatically cut off power, and protect electrical equipment from damage. Specifications: Component: PC Size: about 81x36x60mm/3.19x1.42x2.36inch Working voltages: AC80-300.0V current: 63A Overvoltage adjustable ranges: 130-300.0V Undervoltage adjustable ranges: 80-210V Package Includes: 1pc voltages Protector note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.