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Hey Spark,
Everything makes sense now and you don't have to worry about hanging out with my friend, "Dave the reptile" That is sort of a special purpose, stuck in the middle meter, that you have there. It will probably serve you very well as an electrician. If you want to do the kind of mad scientist, disturbed mind, experiments, that I tend to come up with, the 70 & 80 series of their meters work better. Yours won't indicate resistances higher than 6000 ohms and low currents. You'll probably want to pick up another meter, down the road, to delve into experiments such as these.
Joe