Using Doorbell Cameras and Smartphone Alerts for Home Security atoallinks.com/2021/using-doorbell-cameras-and-smartphone-alerts-for-home-security
A video doorbell camera is half security camera and half doorbell. Video doorbell cameras work on the same premise as old-fashioned security cameras, by allowing you instant access to an on-screen live feed of whoever is ringing the doorbell. However, most modern candidates for the best video doorbell & Wifi Camera probably fall into the smarter, more sophisticated video doorbell class. Let’s look at what’s out there. The first major advantage of most of the video doorbell cameras on the market today is that they broadcast a digital infrared signal. Infrared light is invisible to the human eye but makes up nearly eighty percent of the visible spectrum. This light has a range of about one hundred to five hundred feet, depending upon the quality of the camera’s optics. The infrared light passes through objects and will “see” them in the near-infrared spectrum. What it doesn’t see is the infrared rays themselves, but if the object is lit up enough it will make up part of the visible light spectrum. These high-tech cameras are able to scan objects more quickly than the human eye can, and they can record motion very effectively.
The recent high-tech doorbell cameras There’s also a new class of high-tech doorbell cameras called multi-sensor units. They use multiple image sensors to determine which area of the doorbell has been triggered. Once the app is installed, these multi-sensor units can be set to trigger various types of alerts based on different parameters. For example, there can be a simple alert that says the doorbell has been tripped. Or it could trigger an audio or visual alarm, or even an automated email. Another new class of doorbell cameras is the chime sensor. These cameras have two primary parts: a chime receiver that connects to the chime tone itself; and a chime tone amplifier that connects to an external stereo system and speaker. When the alarm is
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