A:AnswerHi there,
The cameras detect motion using infrared light & heat signatures. Since the door knob won't be making enough heat for it to detect, the motion detector would likely not trigger.
A:AnswerHundreds of feet with some diminishing once you get past 50-75 feet but not significantly so. I’ve found the cameras to be excellent and have four both internal and external.
A:AnswerYou cannot currently access the Blink APP from your computer. The Blink APP is currently only compatible with iOS mobile devices running 12.5 or higher, Android mobile devices running version 5.0 or higher and Fire OS mobile devices, running software version 5.1 or higher
A:AnswerThe system still requires WiFi and power to function properly. Clips will not be written to the USB drive without an available WiFi network for the Sync Module and camera to be connected to. If the Sync Module is offline, you will not be able to view clips on the Blink APP. You would need to reconnect the module to internet/power or remove the USB to view the recorded clips on a computer.