SECURITY DEVICES, SYSTEMS, AND ELECTRONIC TECHNOLOGY

• NCJ Number: 12183
• Journal: Security World Volume: 10 Issue: 9 Dated: (OCTOBER 1973) Pages: 20,21,50,52,53,57
• Author(s): J E THORSEN
• Date Published: 1973
• Length: 6 pages
• Corporate Author: American Soc for Industrial Security
• Publication Format: Article
• Note: *This document is currently unavailable from NCJRS.

Annotation

DEFINITIONS OF FOUR BASIC SYSTEMS FOR PROTECTING PROPERTY --LOCAL ALARM, CENTRAL STATION, PROPRIETARY, AND DIRECT CONNECTED SYSTEMS.

Abstract

ASPECTS OF THESE SYSTEMS DISCUSSED INCLUDE CLOSED CIRCUIT TELEVISION, NIGHTTIME SURVEILLANCE, ELECTRONIC ACCESS CONTROL, AND USE OF MINICOMPUTERS.