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 activated, the amplifier transfers the sound and the light from the chime receiver to the speakers. The amplifier also converts the sound and LED light from the chime receiver into a higher volume signal that can be amplified by speakers. A chime can come with a built-in volume control so the owner can adjust the volume as needed without losing reception.
The option to buy a two-way audio and video camera
The final type of doorbell camera I’ll discuss is called a two-way audio and video camera. This is ideal for security companies that need to monitor an area twice as large as what a normal doorbell might cover. For this type of system, two cameras are used instead of one. One camera is placed in a fixed position, with its lens pointed at the entrance; while another camera is placed at a 45-degree angle and rotated 90 degrees so it can see the area beyond the first.
With a two-way doorbell system, live video imaging is possible. The video storage system is similar to the chime receiver with one significant difference: the video storage system allows you to watch recorded material in real-time. This means you don’t have to wait until an actual camera view is taken before you can view what’s going on inside. The video storage also makes it easier to identify patterns and other types of movement. Since you can see exactly what’s happening, it’s much easier to stop an intruder than it is with a fixed camera that needs to be trained on the entrance. These doorbell cameras can be easily purchased from websites like amcrest.com.
