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”Steve Schmit, engineering manager – alarm certificate services with UL’s Building and Life Safety Technologies division, Northbrook, Ill. , also notes this trend. “We are seeing the industry approach the market with services. Technology is such that users can interact with the security system in ways that weren’t possible before, which opens up all kinds of opportunities. We see folks not only introducing new security type services such as video, but that same pipeline enables your security system to help out with things like personal emergency response and home automation sorts of things. ”This is exactly what led East Hartford, Conn.

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, twelve LEDs arranged in a row. The row of IR illuminators 1105 provide adequate illumination without producing a bright red/visible glow that would result from fewer and more powerful IR illuminators. In some implementations, the lens assembly 704 is supported by a lens holder 1120 within the device housing 702, and the lens holder 1120 has a top edge raised towards the front cover plate 708 for blocking the infrared light generated by the array of IR illuminators 1105 from entering the lens assembly 704 directly. In some implementations, the IR illuminators 1105 include IR LEDs having a wavelength of 940 nanometers. In some implementations, the IR illuminators 1105 include IR LEDs having a wavelength of 850 nanometers. In some implementations, the image sensor for the doorbell camera 106 is less sensitive to 940 nm light than it is to 850 nm light. Therefore, IR LEDs having a 940 nm wavelength cause less interference with the image sensor than IR LEDs having an 850 nm wavelength. Further, in some implementations, a heat spreader 1128 is coupled to the IR illuminators 1105 to dissipate heat generated therefrom. The doorbell camera 106 may further include a speaker 1106 contained within a speaker box 1136 that is further disposed in proximity to speaker holes 718. When the speaker holes 718 are located on a bottom rim surface of the device housing 702, the speaker 1106 is placed behind the button assembly 1102 and faces the speaker holes 718. Given that the doorbell camera 106 includes both the microphone 1104 and the speaker 1106, a remote user may review live video streams captured by the camera module of the doorbell camera 106, and have a conversation in real time with the visitor.


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For burglars that enter a home knowing that family members are inside, their intentions are often much more malicious and the home alarm system again serves as an early warning system and calls the authorities. According to the U. S. Fire Administration, in just thirty seconds a small flame can turn in to a full blown fire. In just minutes of a fire breaking out, the home will be filled with thick black smoke that makes it impossible for family members to breathe. These two facts alone are enough to reinforce the importance of having a home security system that will signal authorities to respond to a house fire.