The Socket & See Earth Loop Polarity RCD is an advanced socket tester designed to ensure the safety and functionality of electrical installations. This device performs a comprehensive internal self-check before automatically verifying correct wiring and conducting a non-trip loop impedance test. With the ability to check the tripping function of 30mA RCDs and assess mains Active/Neutral polarity, it is an essential tool for electricians and maintenance professionals. Featuring bright LED indicators that surpass traditional neon lights, this tester provides clear visual feedback with a logical 'Green for Good' indication. Its innovative circuitry prevents RCD tripping during tests, while continuous audible tones offer immediate feedback on wiring conditions. The patented 'Fault Locate' technology enhances fault detection capabilities, making it easier to identify issues in noisy circuits. With its user-friendly colour LED readout system and built-in self-check feature, this socket tester delivers confidence in operation and accurate results every time.