There are limits to everything, and maximum frequency is one of them. I wondered if the meter would be any good as an a.c. millivoltmeter for making audio measurements. The frequency response was not quoted in either the advert, or the instruction book, so I thought I would measure it for myself.
So I tried different frequencies, checking the amplitude was constant on the 'scope. The results are plotted here. I didn't use the "smoothed" curve in Excel, because it puts in an artificial hump at 1kHz which isn't really there. Joining the dots with straight-lines doesn't look as pretty, but is probably more accurate.
On both ranges, the meter has a flat response up to 1kHz and then drops off quite sharply reading almost nothing at 10kHz.
So I conclude that it is good for power frequencies, and even for measuring impedance at 1kHz as part of a bridge or potential divider, but it is not much use for general audio use - I'll stick to using the 'scope.
This blog post is not intended to be a full review of the product, and I should probably also say that I'm NOT being rewarded in any way for this post - just want to share the information.
The meter is very versatile. It comes with a thermo-couple temperature probe. It also has a USB data output feature which I haven't tried yet. I also like that it has a big display and a backlight.
It will be a useful addition to the work bench, and hopefully last as long as my last one (30 years+)!