When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Socket Testers & Proving Units. Just plug this adaptor into a standard UK three-pin socket to allow testing of internal wiring. The adaptor includes three 4mm jack test lead ports so you can attach your test leads directly to the unit and use your electrical tester to check the overall status of R1/R2.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.