NCJ Number
31069
Journal
Security World Volume: 12 Issue: 11 Dated: (DECEMBER 1975) Pages: 12-24
Date Published
1975
Length
13 pages
Annotation
DISCUSSION OF THE DIFFERENT TYPES OF SECURITY ALARM SYSTEMS AND THEIR USES, A BUYER'S DIRECTORY OF MANUFACTURERS AND DISTRIBUTORS OF SECURITY HARDWARE, AND A TECHNICAL GUIDE TO ANTI-INTRUSION DEVICES.
Abstract
THE DIRECTORY LISTS THE COMPANY NAME, ADDRESS, AND THE PRODUCT OR PRODUCTS PRODUCED. THE TECHNICAL GUIDE IDENTIFIES FOURTEEN DIFFERENT CATEGORIES OF ANTI-INTRUSION DEVICES (FROM PHOTOELECTRIC BEAMS TO VIDEO ALARMS) AND BRIEFLY DISCUSSES THE PRINCIPLES OF OPERATION AND APPLICATION OF EACH.