It is good that the clip is a crocodile mouth.
Moreover, it is solid.
Work efficiency is good because it can be used while searching for wiring with one hand.
The point of red LED is also ◎
A long time ago, the tester was dark with a light bulb and was difficult to use.
Is it a sunny day or not?
The light bulb was out and the tool box was fertilized.
The bellows wiring is also ◎
I was obsessed with continuity confirmation and the wiring was bean and broken from the root.