I'm looking for an oscilloscope to check on car's battery (12V) or alternator (14V) DC voltage. The main purpose is to see how stable is the voltage. I have many voltage stabilizer so i would like to see which 1 works best and if things gets better if many stabilizer are installed in parallel, etc...
I'm looking at picoscope 2204 & 2205, but since i have not involved in oscilloscope before, can anyone tell me what spec do i need to achieve the purpose?
i have only 1 purpose, and would like to spend minimum price for an oscilloscope to achieve my purpose.