I have about a 25 year old Fluke Handheld.  I was disappointed to find it wouldn't read anymore.  Then it hit me, the display is lit, so maybe it was the lead, not the Fluke.  Lucky - the old lead was bad.  Bought these, happily, as they are OEM Fluke leads and plug right into my old Fluke.  Threw out the old lead set and am working with this new one now.  Then I read that I should probably change the leads like every 2 or 3 years so I guess I got about 20 more than planned by Fluke.  These are probably going to last the next 25 and I will be lucky at that point to be alive and able to still use a multimeter.  Great product, good price, Amazon service.  Fluke works well again.  Very happy man writing this note.