Identifies UK 13A mains socket wiring faults. Durable design with 3 LED indicators. Instant socket safety test without the need for a multi-meter. Indicator LEDs identify: correct wiring; live and neutral reversed, live and earth reversed; no neutral, no earth and no live wire. Includes instructions. Certified to BS EN 61010, 61326, 61000 and 50581 applicable standards. Only suitable for UK 13A mains sockets. Identifies UK 13A mains socket wiring faults. Durable design with 3 LED indicators. Instant socket safety test without the need for a multi-meter. Indicator LEDs identify: correct wiring; live and neutral reversed, live and earth reversed; no neutral, no earth and no live wire. Includes instructions. Certified to BS EN 61010, 61326, 61000 and 50581 applicable standards. Only suitable for UK 13A mains sockets.