Review on Fluke T+PRO Electrical Tester: Compact and Efficient Solution for all your Electrical Testing Needs by Paul Tilden

I've had a lot of problems with these meters and probably only use them twice a month in a residential setting and I usually have problems for a few years and the fluke is a bitch son and they fight over it every receipt, and then you let him make sure you get a new meter from them. There is a tiny serial number on the sticker that comes with the kit. Take them, stick them on your meter and stick them on top. It is the warranty date code. You'll never see it in the box, but it's a bit more of a serial number so you should keep it so if it breaks you have a chance of getting a new one from Fluke. I was surprised Luke was so mean and replaced the gauge for $100 or less. They should have a serial number built into these meters, not some silly little sticker you should have put on when you bought them that you obviously missed in the box.