The Shure SFG-2 has worked perfectly for dozens of years, and unlike no-name electronic devices, will never go out of calibration unless the Earth’s gravitational force changes substantially. Its graduations are in 0.05g increments, and don’t be fooled by non-believers, the accuracy will remain +/- 0.025g forever.Yes, but it's very fiddly to use. And the styus must sit in a metal groove, while I'm sliding the weight around on the other end of the fulcrum. That groove could break the stylus right off the cantilever. I use one but it makes me nervous.
I have a digital scale, but don't trust it — the readings vary too much, even when VTF is constant. Probably a bad one.
Mostly I use the old Technics SH-50P1; electronic though not digital. Much safer than the Shure, and more consistent than (my) digital unit.