The X0276 Live Line Indicator (LLI) module is a non-contact, 3-phase, voltage sensing unit used in sensing the presence of voltage on a phase. The presence or absence of voltage is indicated via the front LED’s or externally connected panel mount LED’s.
 

Due to the non-contact method of detecting voltage, this unit should not be used to prove voltage is present or absent in the determination of safety or life critical situations.