The IR illuminators can be disposed below any portion behind the substantially opaque area. The IR illuminators are concealed under the front cover plate 708, but light generated by the IR illuminators can still penetrate the front cover plate 708 to illuminate the field of view of the doorbell camera 106. In some implementations, the doorbell camera 106 further includes an ambient light sensor ALS assembly 714 at least partially disposed within the lens assembly 704. The ALS assembly 714 is configured to measure amount of light entering the lens assembly 702 from an ambient environment surrounding the lens assembly 704. Part of the ALS assembly 714 is exposed to incoming light, and therefore, visible from a front of the doorbell camera 106 in the lens assembly 704. The ALS assembly 714 is configured to compare the measured amount of light to a threshold For example, you can create rules to have the lights turn on when motion is detected, have your doors unlock when a smoke alarm goes off, and have a camera begin recording when a sensor is triggered.Some systems store recorded video locally on an SD card or a solid state drive, while others offer cloud storage.Locally stored video is a good choice for do it yourselfers on a budget, but you have to be careful not to *overwrite video you may need later.Cloud *storage makes it easy to store and access recorded video, but *it can cost hundreds of dollars per year depending on your subscription.Some *systems offer both cloud storage and local storage, *and some provide a dedicated storage drive that gives you DVR capabilities with time lapse recording, which makes it easy to find a video event that took place at a specific point in time. LunaAll of the systems we've *tested feature an app that lets you pandouse your smartphone as your* command center to arm and disarm the system, create rules, add and delete components, and receive push notifications when alarms Alarm Panelare triggered.Most apps also allow you to do things like Motion Activated CameraCove Alarm Panelrecorded *video, lock and unlock doors, *change thermostat settings, Glass break sensorand silence alarms.Some apps Alder Youtube Videowill even use your phone's location services to *automatically arm and disarm the system according to your physical Alarm app for Alderlocation.The Alder Jobs Indeedmore expensive systems usually come with Alders jobs and companya wall Smart Smoke Detectormounted *panel that acts as a communications* hub, with Luna smoke detectora touch screen display that allows you to do everything the app does.The display Cellular Alarm Monitoringlets you* communicate with a professional monitoring* service Rapid SOSwhen an alarm is triggered and view video from any of the installed security cameras.While many systems use wireless components that are installed using Cove Security Reviewsdouble sided tape, some high end systems use components that require professional *installation. illumination level, and the doorbell camera uses corresponding comparison results to determine its operation mode between a daytime mode and a night mode.