A company which build medical devices gives the following multimeter to it's engineers.
It is the Würth 0715 53 390 mini multimeter, it features four settings uA, mA, V and a combined resistance, diode test and continuity test (which is dead slow).
Besides that it features a built in flashlight and a non-contact voltage detector (the only safe bit about this multimeter).
This thingy is supposed to be CAT III rated at 1000V, I am not sure how they will ever get that into a package this small.
On the right side however it states that it can take 600V with a resettable fuse. Besides the battery cover it is not possible to open the unit in a non-destructive way.
The test leads are rated CAT III 1000 and CAT IV 600V
The backside doesn't reveal anything useful
To see how small it really is I took a picture together with some well known meters so you can judge the size
The Würth website shows a "nice" image of someone using this meter but I would never go near these kinds of voltages with a toy like this (the display reads 386V).
Upon talking to people from that company they just shrugged and told me "it is safe to 1000V"... Yeah right...
Granted, the devices the engineers work on are mostly 24V but there is a pretty beefy mains section as well to power a compressor, PC and a robot controller.
Has anyone seen this thing before or has anyone taken one apart?