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Glass-Break vs Shock and Vibration Detectors: Which Protection Method Works Where?
Essential Security Supplies
A shopfront, office window and service door can present very different intrusion risks. An acoustic glass-break detector listens for a glass-breaking event. A shock or vibration detector monitors disturbance in the surface or structure where it is installed. Their purpose overlaps at the perimeter, but the event they measure and the way they are commissioned differ.
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PIR vs Dual-Technology Detectors: Selection for Difficult Commercial Environments
Essential Security Supplies
A detector that works well in a quiet office can be a poor fit for a loading area with moving doors, changing temperatures and machinery. Choosing between PIR and dual-technology detection starts with understanding the intrusion route and the conditions that exist when the alarm is armed. Changing technology without addressing placement can leave the same problem in a different enclosure.
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Reducing False Alarms in Commercial Security Systems NZ
Essential Security Supplies
Repeated nuisance alarms cost time, reduce confidence in the security system and can distract operators from genuine incidents. In New Zealand commercial properties, false alarm patterns commonly arise from detector placement, changing occupancy, door contact alignment, environmental movement, poor maintenance or incorrect panel programming. There is no single sensitivity setting that solves every problem. The most effective approach is evidence-led: establish which zone is activating, reproduce the...
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Door Contact Selection: Gap Ratings and Roller Doors NZ
Essential Security Supplies
Door contacts look simple, but many nuisance alarms and incorrect door-held events originate in poor contact selection or alignment. A contact that works when held together on the bench may not operate reliably on a moving steel door, vibrating roller shutter or frame that flexes with seasonal changes. New Zealand installers need to understand operating gaps, magnet orientation, mounting substrate and the difference between a reed contact...
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