With Non-Trip Earth Loop Impedance check

Bright LED's indicators with logical `Green for Go` LED Indication
Detects good plus 17 wiring fault conditions
Clear indication of where the actual fault is - Live, Earth or Neutral
Continuous or strong warbling tone gives positive quick indication of good or faulty wiring
Colour LED read out shows earth loop impedance result as Good, Check or Urgent Check; Good when less than 1.8Ω
Built-in self check

High sensitivity RCDs or excessive earth leakage currents may cause inadvertent tripping of the circuit. Always check prior to use where loss of supply may be hazardous or unacceptable.
This unit is an indicator only and is not designed to provide readings for completing certificates