Works Great when a SV feature is not built-in your DMM.
If you have an old digital multi-meter or got one that does not come with a stray-volt (a.k.a. Low Input Impedance) built-in, this adapter is a great alternative.
It works great, but don't expect your standard/old Fluke test leads (like to ones that normally comes with your DMM) to fit properly with it. Unless your test leads comes with springy or expandable plugs, even an old Fluke test lead would sit rather loosely. Fluke's SureGrip test leads like the TL222 (or any that starts with "TL22"X) would have springy plugs, and is often sold with this SV225 Stray Voltage Eliminator as a kit.
I work on battery and recharging systems and this device helps with eliminating electricity that has a tendency to creep out. Big help in improving safety.