The EFO test pack 1 has been to put together to complete all the mandatory testing required to be performed by electrical workers. This pack is extremely good value and offers special pack pricing as a bundle. The test pack consists of a MFT4PLUS multifunction tester, The newly released GBM1000 ghost busting multimer with CA1000 flexible clamp adaptor, EFO PU240 proving unit and VS50 Voltstick.