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Security Products from Bentley Security | UK Manufactured Security Products
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To download the Bentley Security Products Overview sheet in printable, PDF format, please click the icon below:. Download Product Overview Sheet in PDF Format. Fast spikes, induced noise and lightening strikes can cause false alarms and be difficult to diagnose. Lightening strikes especially can induce very large transient voltages into both mains supply and 12V auxiliary supplies. Our range of mains and DC filters provide a simple solution. This extremely versatile unit has TWO timer periods. Timer ‘A’ ...