MARTPROF Professional Ring Mains Socket Tester Plug Audible Notify\n- Indicates: Correct connection, Live/Neutral Reversed, Missing Neutral, Missing Earth, Live/Earth reverse.- Reliable and easy to use. Clear LED indication of wiring status.- Audible notification of wiring condition. Modern ergonomic design with unique soft finger grip.- Compact, durable design to safety standards BS EN 61010.- Cat II 250V rated. CE approved.- Dimensions: (W)60mm x (H)68mm x (D)56mm.\nThe MARTPROF Professional Ring Mains Socket Tester Plug Audible Notify is a very simple socket tester to check the correct polarity of a 13A UK socket. It has a simple 3 LED indication accompanied with an audible buzzer for clear correct polarity. Fault indications are quickly identified using the key on the face label.\nFeatures:\n- Audible and visual indication of wiring status.- LED indication of a wide range of wiring conditions.- Designed to BSEN 61010.- IP30 rated.- 230V AC mains powered.- Weight: 60g.\nPolarity fault combinations:\n- Correct Polarity.- Missing Earth.- Live Earth Reverse.- Live Neutral Reverse.- Missing Neutral.\nDimensions: (W)60mm x (H)68mm x (D)56mm.