I have made a dedicated cam in splitter cable for it that simply interrupts either the camera or monitor cabling of any of my 'some bloke' rigs.
The black/red/white cable is slim enough to be pinched by the monitor into my friction fit monitor boxes.
Shown here connected in line with my truck spotter - which is powered by my indoor test rig:
Conveniently showing how it could be used indoors in a window for example.
This is a recording done with it using a small 501b illuminator, it has an internal Microphone:
https://www.youtube.com/watch?v=c1OqGClUNDw
Price is £60 - or £50 if bought with a spotter.

















