My, we are up late!
The Fluke 27/FM is a made for military true RMS meter, made in the 80's. The military is dumping their surplus of them and going to a newer model. I picked up two last year with recent calibrations for pretty cheap on e-bay. One of them looked like it had hardly ever been used and the other slightly used and thats the one you are seeing. Fluke hardly makes a bad meter though and the 87 is a great model I used to use at work all the time.
When I was in electrical engineering, we had a saying that went around. The fluke never lies! I have the 87 and a nicer craftsman meter, and the fluke is much better, especially when it comes to reading resistance. Zero out the fluke and read a coil at 1.3 ohms. Then take the same coil with a the craftsman and subtract the internal resistance from the reading at get something dumb like .4 ohms.
