Martindale SB13 Safe Break Socket Adaptor, Yellow

Test-meter.co.uk

Martindale SB13 Safebreak Socket Test Adaptor - 4mm socket adaptor for R1 & R2 electrical testing. Enables quick, safe wall socket testing without removing faceplate. Compatible with standard 4mm test probes and metres.

Amazon

Test at socket outlets without removing the socket from the wall Speed up R2 and R1 + R2 measurements Standard 4 mm banana sockets