They are available in widths of three feet and four feet. The pushpad incorporates an internal SPDT switch that is designed as a signaling switch rather than to control a load. The units are supplied with a three-foot cable at the hinge side of the door. The closures are custom engineered to fit any opening. They can be stored away during business hours.
Retailers install the cameras on the walls throughout their store.
If an employee sees suspicious activity, he or she hits the corresponding number on the keypad, which sets off a buzzer on the camera, alerting the suspect to the camera's presence. The cameras are the size of a baseball, can swivel a full 360 degrees horizontally, and can be positioned plus or minus 90 degrees vertically. It can be mounted on ceilings or walls. F. The BC-450 provides more than 425 lines of resolution and has a sensitivity of .03 lux. The BC-935C has a resolution of more than 330 lines and a sensitivity of .4 lux.