Megger MST210 Electrical Socket Tester The Megger MST210 Socket Tester is a convenient, compact plug-in style tester designed to identify wiring faults at UK 13A 3-pin power sockets. Over 17 combinations of wiring fault can be identified including missing wires and incorrect or reversed connections. Faults are signalled by 3 bright LED’s on the front of the unit, with a simple diagnosis chart for typical errors included on the label next to the LED’s. 2 green LED’s signal a correctly wired socket, and a third red LED identifies a fault. If either green LED fails to light, or the red LED comes on, a fault is present and will require further investigation. Features: Simple and effective identification of faulty wiring at sockets Easy to use 2 green and 1 red LED’s for instant error reporting and fault diagnosis Identifies 17 missing wire and wrong connection combinations Rugged and reliable Specifications: Indicators: Bright LED 2 Green; 1 Red Supply Rating: 230 V AC 50/60Hz single phase Operating Temperature: 0°C to +40°C Humidity: 0 to +40°C