3) contact sensors- people complain they are too large-this is true if you plan to use on windows and most your openings, but thats true for any system that is not hard wired, including Nest ‘s contact sensors which are much more $ and only slightly smaller . And the hard wired ones are set into window/door frame- you can do that yourself and hire at least Hal;f the senior (i have chosen to embed with a little chiseling the large part fo the contact and lead the mangnet small part episode on the door; if you want it save yourself soem work and can tolerate a little more obvious appearances, embed the magnet. If this is a big issue for anyoen, just embed one half fo the contact into the doorframe it yield a very unobtrusive appearance.
At 3.2 by 0.9 by 0.9 inches (HWD), the Z-Wave contact sensors for doors and windows are bulkier than the sensors that come with the Vivint Smart Home system (2.5 by 1.0 by 0.5 inches). They're each powered by a CR123 battery that is rated to last three years and can be installed using double-sided tape or with mounting screws. The motion sensor (3.5 by 2.4 by 1.7 inches) also runs on a CR123 battery and uses a Z-Wave radio to communicate with the base station. The range extender (3.1 by 1.8 by 1.1 inches) plugs into a wall outlet and extends the Z-Wave signal by up to 250 feet, so you can place sensors just about anywhere.
We've begun having an ongoing problem with car break-ins in our neighborhood. I wanted to get a security cam to monitor our driveway. I looked into standard cctv and more advanced poe/hd cams with a dedicated computer and HDD, but hesitated due to the complicated nature of the installs. Not that I can't do that, but I really wanted a simpler option. Enter the Ring Floodlight Cam. I purchased one to install in place of the motion floodlight over our driveway. I am pleased.
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