Hi Guys Just wondering if anyone out there has installed the SkyBell door bell. I did and having nothing but problems. I have got through several hurdles, last one seems to be the need to purchase a 12vDC mains powered mechanical Doorbell to get the thing going. Cannot use battery or wireless models. Does anyone know a shop that sells these in SG? Happy to give more feedback, if/when I get it going. For the moment I would suggest don't buy it on Amazon. Skybell provides a support team but the team does not provide support other than words of good luck. :-( Cheers Mark.