The ionizer can be used to neutralise electrostatic charges between the sample container and the balance, which can lead to inaccuracies in the measurement. The fan-free technology prevents fine samples from being blown away.
POA means "Price On Application". Items displaying POA instead of the sell price do so for a number of reasons, not least because we anticipate some additional information is required in order to supply the most suitable options/configuration to each individual customer.