First time using this tester. I disassemble the tester and found a OFF micro switch I drilled a hole so I can turn off/reset the tester!
Could not make the InfraRed function to work. But see my next video, because I just discovered how to find the menu and switch it to IR function!
UPDATE: Here is video how to use the InfraRed option:    • MultiFunction Tester MTTV1 (second ...