kewtech kt62 multifunciton tester, electrician inspection and testing

hello, i bought this multifunction tester second hand from ebay for learning purposes. it is a 5 in 1 tester and being second hand does not come with original parts. i bought a second set of test leads from ebay which are RS pro and usually cost around £30 new. the tester also came with kyoritsu test leads. i intend to use the tester to learn inspection and testing procedures along with guidance note 3 and practical guide to inspection and testing of electrical installations by christopher kitcher ... https://www.youtube.com/watch?v=OsZFU5V9lmY