Consultants have tools too
For the most part, we at Trinity are very much white-collar workers (we don't get dirty on the job) because we generally don't do stack testing or "field" work. Getting out of the office usually means going to a meeting, conference, or training course. We do occasionally get to tour plant sites, especially those for which we are preparing air dispersion modeling analyses (it's good to know what a site actually looks like when you are trying to build it in a model). It is these times when we get to break out the few tools (excluding software) we have. I'm sure the stack testers who tote equipment to the top of smoke stacks would scoff at me, but try carrying and using a camera, GPS, and two stop watches while also trying to make notes on a D-size plot plan drawing and multiple aerial photographs in 20 mph wind 150 feet off the ground. This is what I recently attempted (except for the stop watches - you only need those when doing visible emissions observations, which are typically conducted from ground level). I even got dirty! Of course, it was just from using the handrail while walking back down the *who knows how many* flights of stairs because the man lift broke while we were on top of the super structure.