Just received the
Aneng MH-13 megohmmeter. Very decent device for reasonable money, listed at $57 at the time of purchase, but with all the discounts active at the time I paid only $55 total for the MH-13 and the
Aneng A3008 pen-style multimeter that I decided to buy for the sole purpose of satisfying the irrational desire of getting yet another multimeter.
What an awesome toy a megohmmeter is!
This model can test at up to 2.5 kV and measure resistances of up to 200 GOhm. Now I can easily blow up trashy multimeters and create beautiful blue sparks across narrow gaps between two conductors!
For the slightly more practical application, I can now do proper testing of e.g. flux conductivity and dielectric strength of PCBs. For example, I found out that a typical Chinese Green Double-Sided 2.54mm Protoboard™, when tested unused out of the box, withstands 1kV, starts to conduct an occasional spark at 2 kV and allows a sustained spark discharge at 2.5 kV between two adjacent pads.
One downside is that it is powered from eight AA batteries. I would much prefer a built-in Lithium battery. But there is sufficient room in the battery compartment to fit 3 x 14500 or flat Li-Ion cells, should I really want to do that. Will see how quickly it drains the AAs first.