I've just got a DSO203 in my hand :)

[shoeb]

@unclouded

@shoeb

80Vpp with 1x probe
So, using 10x probe it should support 80x10=800 Vpp

Probably this is right as paf can view 230 RMS using it.
800Vpp =400V peak= 282.84V rms

It’s been recommended not to exceed 60V at the scope with the aluminium version:
http://www.seeedstudio.com/depot/dso-quad-aluminium-alloy-silver-p-1033.html?cPath=174

Okay,
Then it is risky.