We've done it! After a long period of R&D we have produced a covert under door camera product that is effective, easy to use and with a price tag that is far more attractive than it's market equivalents.
https://rvasynergies.co.uk/security-inspection/securuty-cameras/47-under-door-camera
Where we will be demonstrating our 'FOX' range of tactical/covert surveillance products.