Purpose: It's used to determine the presence of AC voltage in electrical circuits, outlets, and components.
Specifications: It has a test voltage range of AC 100-500V and a slotted size of 4x190mm.
Indicator: It utilizes a neon bulb to indicate the presence of voltage, which illuminates when current flows through it.
Safety: It's designed to help protect the user from accidental electric shock when testing for live wires.