June 2019 AST Magazine June 2019 AST Magazine

www.AmericanSecurityToday.com June 2019 - Edition 34 (See Senstar’s FlexZone cable-based fence-mounted system that detects and locates any attempt to cut, climb or otherwise break through the fence, adapts to a wide variety of fence types and is ideal for sites of all sizes.) Note: Some sensors, like the FlexZone-4, may re- port to security systems at the zone level but are still considered ranging sensors as they use distance information internally when analyzing disturbances. While block sensors have their place, es- pecially at smaller sites that require only a handful of alarm zones, ranging sensors offer numerous benefits that improve per- formance while lowering overall operating costs, including a lower nuisance alarm rate and lower installation/maintenance costs. for nuisance alarms generated by strong winds. Modern fence sensors employ various al- gorithms to distinguish between weath- er-related disturbances and true intru- sions. The effectiveness of these algorithms in large part determines the end-user’s overall level of satisfaction with the system. Avoid Weather-Related Nuisance Alarms Sensors with ranging capabilities can im- prove their weather-rejecting capabilities by using a technique known as environ- mental disaggregation. Anytime an intrusion detection sensor is attached to a fence, there is the potential The sensors can differentiate between weather-induced disturbances that are ran- 4

June 2019 AST Magazine June 2019 AST Magazine | Page 6