Martindale CP501 Socket Tester Plug

Martindale-13A-Socket-Tester-Martindale-CP501-p-Classic-socket-tester-plug-from-Martindale-with-neon-indicators-in-ABS-housing-The-plug-induces-less-than-5mA-of-earth-leakage-well-below-RCD-trip-thresholds-As-with-all-socket-testers-the-plug-only-verifies-the-presence-of-an-earth-but-does-not-assess-its-quality-p-Martindale-CP501-Socket-Tester-Plug

Price: 16.57 from Rapid Online Rapid Electronics Ltd.