"Andy Burns" wrote in message
...
tim... wrote:

is it possible to obtain just the internal microwave sensors

There do seem to be PIR sensors that have been modified to be radar
sensors (bizarrely still using the same chips) see Andreas Spiess on
youtube ...

https://youtu.be/9WiJJgIi3W0

whilst "un packaged" devices is the form that is required, I do still need
them to be on a board that can be wired into a 240 volts circuit and not 5
volts (I think)

tim