I assumed that given the contents list, the kit was not mobile, and at that point, knowing BP for victims helps when they get beyond the basic ABC treatment.
I'd think that non-electric thermometers are still available at places like Walmart, Walgreens, CVS, etc. If not, they're fairly cheap online from Walmart or Amazon.
For your brimstone planning, you may want to add a copy of Dr. Alton's "Survival Medicine Handbook".
http://amzn.to/2bEExXRDr. Alton writes from the position that there may be an interruption of service for some time, and modern medical treatments may not be available. As such, he includes some older treatments that are better than not treating at all.
Training, Training, Training.