So I am getting my hands on some new tools. I am going to order the field density altitude compensator, and I have got a mildot master. I can use my phone to determine temp, altitude , pressure, and humidity, but I would rather use non battery equipment. I have got a little thermometer, but I was wondering if anyone could recommend some analog Barometers, altimeters, etc. Obviously small scale to fit in my binder along with the other stuff.
Eric
Eric