Kundip AC Line Fault Detector FEATURES: It allows you to check faults in AC line with its self test function. Its compact and portable design makes it easy to carry and use it almost anywhere. Its durable and very easy to use. Just plug it in to a socket and switch the socket ON and it automatically detects and shows whether there is any fault in the line. FUNCTIONS: ALL OK: When there is no issue in the line, Red and Green light will lit. EARTHING FAULTY: When there is an issue with earthing, Only Red light will lit. NEUTRAL FAULTY: When there is an issue with neutral line, Only Green light will lit. L & N REVERSED: When the line is joint incorrectly, it means that the neutral wire is connected to where the hot wire is supposed to be. Red & Yellow light will lit. LIVE FAULTY: When there is an issue with live wire, No lights will lit. DIMENSIONS: 3.8cm x 4cm x 4.6cm PACKAGE CONTENTS: 1 x AC Line Fault Detector