1、Supports overvoltage protection, undervoltage protection and voltage display, also support voltage measurement. 2、Both overvoltage and undervoltage protection values and recovery values are adjustable, and overvoltage and undervoltage protection action time is also adjustable. 3、The fault recovery delay time and power‑on delay time are adjustable, and the power‑on delay time is also adjustable. 4、Support reset mode selection, fault query and factory reset function, can bring you more convenience. 5、High‑quality plastic material, hard, durable, corrosion‑resistant and also has long service life. Conditon: 100% Brand New Material: Plastic Color: As the Picture Shown Model: SVP-912 Whole Product Size: Approx. 35 x 85 x 65mm/1.4 x 3.3 x 2.6in Rated Voltage: 230VAC 50Hz Rated Current:1-40A Adjustable 1-63A Adjustable 1-80A Adjustable Undervoltage Protection Value: 219V-150V-OFF (Adjustable) Overvoltage Protection Value: 221V-300V-OFF (Adjustable) Recovery Delay Time: 2-512s Boot Delay Time: 2-255s Disconnect Capacity: Overvoltage: 221-300V Undervoltage: 219-150V (Adjustable)Functions: 1. Overvoltage protection 2. Undervoltage protection 4. Overvoltage protection value is adjustable 5. Overvoltage recovery value is adjustable 6. Overvoltage protection action time is adjustable 7. Adjustable undervoltage protection value 8. Adjustable undervoltage recovery value 9. Undervoltage protection action time is adjustable 10. Adjustable delay time for fault recovery 11. Adjustable turn-on time after power-on 12. Reset method selection 13. Troubleshooting 14. Restore factory settings 1 x Under Over Voltage Protector 1 x English Manual