Each of the first and second open slots has a respective width that is larger than a first width of the body of the fastener and smaller than a second width of the enlarged head of the fastener. When the mounting plate 800 is being mounted to a surface, the respective fasteners are fastened onto the surface via the first and second open slots, thereby holding the mounting plate 800 between the enlarged heads of the fasteners and the surface. Before the respective fasteners are tightened onto the surface, a position of the mounting plate 800 is adjusted by
moving the mounting plate 800, including the first and second open slots, with respect to the respective fasteners. The first and second open slots 802 and 804 can therefore define two perpendicular directions of adjustment for the position of the mounting plate 800, and each of these two perpendicular directions of adjustment is associated with a respective range of adjustment defined according to a longitudinal size of the respective open slot. Further, in some implementations, the heads of the fasteners fastened into the first and second open slots 802 and 804 rises beyond the front surface of the mounting plate 800 by a head height. Referring to FIG. 10D, in some implementations, the
bypass unit 1012 may also function as a voltage meter to determine whether the transformer 1010 can provide a supply voltage sufficient to drive the doorbell camera 106 which normally consumes more power than a conventional doorbell. The bypass unit 1012 includes a voltage monitoring unit 1012A, an LED indicator 1012B, and bypass circuit 1012C. The supply monitoring signal is generated by the voltage monitoring unit 1012A of the bypass unit 1012, and the LED indicator 1012B is located in the bypass unit 1012. The LED indicator 1012B sends a visual message to the user to indicate whether the input AC voltage is low with respect to the supply threshold. Likewise, in some implementations, the remote chime 1006 may be configured to ring differently based on the supply monitoring signal, thereby indicating whether the input AC voltage is sufficient to drive the doorbell camera 106.
free medical alert systems
In some implementations, a categorization is based on a determination that the event candidate involves one or more zones of interest.
While we found battery powered units such as RemoBell quicker to install, doorbells like the Ring Video Doorbell 2 that also connect to your existing doorbell wiring are superior in almost every way.
- home securty system
- home alarm services
- senior monitoring systems