I haven't taken the electronics apart yet but I've tried to get point to point resistor values but I couldn't which means it so is about 1 MΞ©. It's good. The desired range is 10^6 to 10^9 (or 1 megohm to 1 gigaohm (?), millions and billions). Good. These tools are AWESOME! look at them all There are so many different ones for specific tasks and some are even labeled. I can't say much about the quality yet, but they feel well made. Mostly molded plastic with some metal and magnets. There is an all-metal b. spatula (have you seen the movie "Edge of Tomorrow"? I recommend). They also have different colors! I am impressed. And all at this price. An interesting aspect is that the writing on the notepad is partially upside down. I mean, it doesn't matter, but it's weird. See all my beautiful photos.