Doubt surge protector device

[cecil87]

a 220v voltage surge protector when its varistor reaches the end of its useful life or bursts, the surge protector presents a signal indicating the time to replace the varistor

 

[FvM]

a 220v voltage surge protector when its varistor reaches the end of its useful life or bursts, the surge protector presents a signal indicating the time to replace the varistor

Is it a finding or a question?
I won't expect this feature
1. There's no respective indicator
2. How should it work?
3. The device is apparently not designed for user access to internal parts

 

[cupoftea]

Yes, check you can get into it...TMOV by littelfuse will do this , as you know.

 

[cecil87]

is a question
this product not have termal fuse