The truck has 2 knuckles(3 pivot points incuding the base). 1rst boom, 2nd boom w/6 hydraulic extensions,fly jib w/ 6 hyd and 2 manual extensions.
It doesnt have a readout of the weight but there is an overload system if too much weight/pressure is put on it. You can over pull causing the piece to fly away, but no more than a straight boom crane. That is operator control or lack of it.
The ton/meter rating is hard for me to explain, I think gus explained it well in a previous post.
Effer has a website but not too informative. Your better off calling Tim Smith at 1-800-343-4210. Pricing all depends on size/options/truck etc.