I got the $150. digital Wally Scale about six months ago, and it's really great. Will measure (with extra, supplied 0.05 gram weight) to nearest 1/20th gram. It's consisent and very accurate. I found it very useful in setting up my Naim Aro/Ortofon Jubilee. Easy to use - works great with any cart.
I also have an old Shure SFG-2 gauge that Sdcampbell mentioned. It is fairly accurate - probably within 2/10th gram - and entirely adequate for most purposes. But due to the "skirts" on the bottom of the Ortofon, I found it difficult to get an accurate VTF reading with the Shure.
I also have an old Shure SFG-2 gauge that Sdcampbell mentioned. It is fairly accurate - probably within 2/10th gram - and entirely adequate for most purposes. But due to the "skirts" on the bottom of the Ortofon, I found it difficult to get an accurate VTF reading with the Shure.