Click to expand Tap to zoom Earthing SK100A Socket Tester 230V 50HZ UK Sold out £7.99 SKU B1 S3 2.8 SK100A SOCKET TESTER BLUE/WHITE SP1 DE 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Sold out This tester verifies that a UK type mains outlet socket is wired properly and grounded.
