Who is There?
For me, I am often paranoid about who is knocking at my door. I know that Singapore is relatively safe but then again, I want to know and capture whoever is at my door just for a peace of mind. Having watched enough Korean dramas, especially those super rich characters living in spacious houses, they have this small TV-like screen that will light up when someone presses the doorbell. I like that kind of visualisation.
Check out this SECO-LARM Enforcer DP-234Q Hands-Free Color Video Door Phone. It shows a video of the person at the door.
That solves my paranoia. It’s simple to use without much tinkering. I can even speak through the door phone without opening the door. Now, I wonder if the person outside will be scared off.