Patent ID: 8842017

Claim:
A device for displaying the lifecycle of a surge protection device, comprising: a ground line directly connecting the surge protection device and the ground; a surge detection sensor detecting a surge input, the surge input being a current flowing through the ground line; a surge detection unit connected with the surge detection sensor and generating a surge input detection information, the surge input detection information including a value of the current flowing from the ground line; a memory storing the surge input detection information and a surge protection device state information; a controller receiving the surge input detection information from the surge detection unit, judging a present state of the surge protection device using the surge input detection information and generating the surge protection device state information, wherein the surge protection device state information includes a lifespan of the surge protection device, and the controller calculates the lifespan of the surge protection device by comparing the surge input detection information and a predetermined value stored in the memory; and a display unit displaying the surge protection device state information in a combined form of numbers and characters.