Security Digest

Nuisance Alarm Rate, Smuisance Alarm Rate

FlexZone perimeter intrusion detection sensor on fence

Not even “windpocalypse” can rattle Senstar products

Ottawa, Canada. April 4-5, 2018

It was a dark and stormy night. For over 12 hours, the winds roared up to 91 km per hour (56 mi). The power went out, trees went down and roofs went flying… but not a single nuisance alarm was generated from either FlexZone or the Senstar LM100 fence-mounted intrusion detection systems affixed to the perimeter fence of a critical infrastructure site!

All fence-mounted perimeter intrusion detection systems (PIDS) are susceptible to weather-related nuisance alarms. High Nuisance Alarm Rates (NAR) can be incredibly frustrating for property owners. At high security sites, nuisance alarms can become a real danger if security personnel become complacent and assume real alarms are false.

Senstar’s environmental discrimination technology allows our products to differentiate between point disturbances caused by real intrusions and spatially distributed environmental disturbances like wind and rain. This keeps NAR low, security personnel on alert, and customers happy.