I got 2! 310-C's and a host of other meters. I find them in the E-waste bin or 'capital reclamation" box (ie. trash) But digital stuff today is awesome for trouble shooting, can get within a foot of a tip or ring ground between buried terminals and can easily give you the pole the fault is on @ +/- 60 feet over hundreds or thousands of feet. Used to use a Analog Sidekick T&D, (only one in the yard who could use it) until one day the meter movement fell apart, I found another broken one and snagged the movement out of it but It still doesnt want to work. I think a power relay is bad. I use a JDS/Viavi Onex 580 now. Its pretty nice, but reads SNI's as 8000 more feet of cable and DSL splitters as 4700 feet so you get some weird readings looking out to the field from cross boxes.