90.02 Research & medical grade ECG devices which some of those were used to study the accuracy of consumer grade HRMs in different papers

Reference device Hardware Software Sampling Rate Channels Leads Electrodes noise & movementartifact free Scientific paper Costs 1 g.tec g.Nautilus multipurpose device 24 3 where used in the paper (up to 64) 3 Motion artifacts can be minimized using active electrodes ( very expensive (*3)) [90.8.6] 32 channel device 54`178 Euro (*1) 2 g.tec g.Nautilus g.SAHARAwith …