Because the KT63 is a multi function tester used for testing both live and dead circuits there are different safety issues that apply to the individual functions. Before using your KT63 please read these instructions paying particular attention to the general safety warnings below and those at the start of each section.
Before using the tester check the case and the test leads for damage.
If any damage is noticed the unit should be withdrawn from service and returned to Kewtech for repair.
It is important for safety that only one set of leads can be fitted at a time. In the unlikely event that the interlock cover is damaged the tester should be withdrawn from service and returned to Kewtech for repair
Kewtech KT63 Multifunction Installer tester guide 2016-08-21
Kewtech KT63 MFT operating instructions