Cat II rating for EEVBlog 121GW

[Medo]

I don't see Cat II rating for EEVBlog 121GW multimeter. Is Cat II rating even available for it?

I know that extrapolating Cat IV based on derating Cat III is a big no-no. How about going to Cat II? Can it be assumed that any Cat III 600V device can handle Cat II 1000V or that assumption is booogus?

[lypse]

Datasheet mentions Voltage range up to 600V, I would not use it on 1kV.

And what normal applicance would have that high voltage? Old monitors?

[Fungus]

I know that extrapolating Cat IV based on derating Cat III is a big no-no.

Not true.

How about going to Cat II? Can it be assumed that any Cat III 600V device can handle Cat II 1000V or that assumption is booogus?

The trick is to not to raise the voltage.

A 600V rated multimeter cannot be used on 1000V, even if it's a lower CAT 1000V.

A 600V CAT III multimeter could be a 300V CAT IV multimeter though.