Features Intelligent Chip: Independently set and display voltage, providing real-time power consumption information, enhancing energy management. Advanced Protection: Safeguards against induced thunder overvoltage, ensuring safety for household and electrical appliances, boosting peace of mind. Versatile Functionality: Limits transient overvoltage, efficiently absorbs or discharges surge current energy, ensuring practical surge protection for various applications. DIN Rail Mount: Stable and reliable 2P design with DIN rail installation, ensuring secure placement and protection for the voltage protector. Clear Digital Display: Features a clear and intuitive digital display screen, improving detection efficiency and ease of monitoring voltage levels. Specification: Item Type: Voltage Protector Rated Power Supply Voltage: AC220V (L-N) Rated Power Frequency: 50/60Hz Maximum Load AC Value: 3VA Overvoltage Operation Value: 230V-300V (Factory Default Value: 275V) Undervoltage Operating Value: 140V-210V (Factor: 175V) Over Under Voltage Action Delay: 1-400S Overcurrent Action Delay: 1-30S Lag: 5% (U.I) Power On Delay Reset Time: 1-400S Measurement Error: ≤1% DIN Rail Installation: DIN rail EN/IEC 60715 Package List: 1 x Voltage Protector 1 x User Manual Package List 1 x Voltage Protector 1 x User Manual