Scale to Measure Pull

[Fireaxman]

Can anyone tell me where to find a scale I can put between my tractor or grip hoist and my bull rope to tell me how hard I'm pulling on it? One of my bull ropes is getting a little worn and I want to keep my pull below a thousand pounds. I've also ordered a new 5/8 rope, but I have access to a bigger tractor and I want to be sure it won't pull more than the 1600 pounds I like to put on the 5/8 rope. I may have to go to a 3/4 bull rope.

I don't think I need digital accuracy; I'ld like to have a spring type scale to 2500 pounds or so in 100 pound increments.