good old ebay. It is a Nihon Kohden machine. comes in a brown briefcase. It's old enough not to have an lcd screen, but with the output going into a laptop, it

good old ebay. It is a Nihon Kohden machine. comes in a brown briefcase. It's old enough not to have an lcd screen, but with the output going into a laptop, it is possible to record your ecg readout. sticky electrodes are by Ambu blue (x50 for £5 on ebay).