The difference between Myriad automatic biochemistry 420 and 480

Just the number of tests is different, most of the others are the same, in fact, the Myriad 300 series 400 series 800 series are the same each series individually are the same, divided into 330 300 or 400 420, etc. just for the convenience of bidding, or multi-level selection. The actual one series is the same instrument through the software adjustment to increase the point of speed measurement.