Power Probe 319FTC-RED Test Light and Voltmeter

This is the third one ive got without the tip do i have to buy it separate

Can you use this on a 6 volt system if you’re running it off a 6v battery?

When you apply power, does it apply 12V or 5V reference? Or is there a way to choose the voltage applied?

Will this work for a car fuse box and fuse, Like bad fuses or a bad part of the fuse box?