JohnR Hello; Ive received my order, what I received is a piece of kit designated Hantek DSO4204B, it came with 4x 200MHz rated probes and has 4 channels. A 1MHz square wave displays as a square wave (unlike my previous two old oscilloscopes which displayed a 1MHz square wave as a very distorted sine wave!) so I am very happy with it. I'm very pleased with it, it seems a very capable instrument... I just need to learn how to use all the maths functions, cursors etc....

JohnR Hello; the product is a 'buck' converter: it can only step down the voltage. To get 32 volts out you would have to input more than this, the specification says 40 volts maximum. I am surprised you can get 12 volts out when only supplying it with 12 volts, usually there is a voltage drop across the switching transistor. It will not, and cannot, step up 12 volts to 32 volts - for that you would need a 'boost' converter. Hope this helps?