There seems to be a lot of new components being made available that can be used to replace components in old detectors to massively improve the performance, we have been in the lab trying out these new parts and some of the results are mind blowing to say the least.... more to come.
One of the most annoying problems using a P.I detector is that they seem to suffer from a lot of interference, well some new devices have been made available that have anti emissions filters built in, I have tried some of these components and noticed an increase in target response at the same time having a quieter more stabile detector.