home security systems chicago
As with any security camera, check out the video resolution and field of view. When wireless doorbell cameras activate, the person outside your home will have no idea whether you are on the other side of the door or on the other side of the world. Door and window sensors are contact motion sensors that trigger an alarm when the protected door or window opens. Like stand alone motion detectors, these can activate when you’re away from home or whenever you choose. For example, you may keep the window sensors always activated but deactivate the door sensors when you’re at home. These sensors can function as part of your security system or on their own, and they vary in size and design from tiny, sleek sensors to bulky and obvious. Sensors also vary in sensitivity. Some may trigger when the door or window vibrates versus actually opening. A carbon monoxide detector triggers when the level of carbon monoxide in your home reaches a dangerous level. Unlike other environmental dangers, you cannot see, taste, or smell carbon monoxide. These detectors can save your life and those of your pets.