New security cameras have been installed at Newtown schools, replacing older ones.  The cameras began recording 24-hours a day ahead of the start to the new school year.  Prior to 12-14, cameras were only located at the high school.  The Newtown Bee reports that after the shootings, companies including  Panasonic, Sony, and Advanced Security Technologies of Stratford bolstered grants to install cameras in all of the town's schools.  There is interior and exterior monitoring through nearly 500 cameras across the district.  Verkada, a cloud-based system, had an equipment cost of $484,886.  The installation cost was $79,200.  Security and building administrators are able to look up images from the cameras, and the authorized users can switch between camera views.  The Newtown Police Department has access to all schools and cameras live and in play-back mode.