You can purchase a digital video recorder, or DVR, separately, but most complete systems are sold with a recording device. Expect to receive either a DVR or a network video recorder with wireless systems. Typical security camera placements include entry doors, off-street windows, porches, stairways, driveways and interior common rooms. Many people make the mistake of beginning their planning after they have already purchased a security system. Instead, start with a security checklist and an ass...

With one doorbell, two properly placed outdoor cams and two indoor cams — five total — you'll get great coverage for your home. We can't give a definitive number without seeing your individual layout and square footage, but you should be able to extrapolate a number from the above information. Some outdoor cameras have their own sirens to scare intruders, which we appreciate for our deterrence-first policy. Indoor cameras may have a built-in siren, or more likely will send an alert to its home h...