On Fri, 6 Nov 2020 02:54:30 +0000, williamwright wrote:

You can get waterproof USB cameras on 15m of cable for not a lot.

An example:

https://www.ebay.co.uk/itm/Pipe-Insp...era-Endoscope-
Video15m-50Ft-Sewer-Drain-Cleaner-Waterproof-Fw/193691363725

Oh that's interesting. Cheers.

"cable" may well be floppy cable not semi-rigid. I have a WiFi based
5 MP inspection camera on semi-rigid cable. Image quality is good.
Some of these cameras have pretty low pixel counts and poor imagess.
It links to an app on your phone or tablet, can take stills or record
a video. Went for seperate display type so you can put that down
somewhere convenient and not fight positioning the camera, the cable,
and getting the display into a viewable position all at the same
time.

https://www.amazon.co.uk/gp/product/B07VK88KWZ

Only 5 m of semi-rigid cable works fairly well horizontally not so
good vertially upwards flops sideways and in a 7" wood burner liner
is difficult to position where you want. Not helped by the rear exit
and 90 degree bend so your limited to one hand at arms length through
the stove and stub of flue for control. B-)

--
Cheers
Dave.