Heat & rate of rise detectors alert much later than ionisation & optical. Ionisation & optical detect fires before they begin but are prone to false alarms. If you position the latter correctly they don't false alarm - that's the best option.
NT
Heat & rate of rise detectors alert much later than ionisation & optical. Ionisation & optical detect fires before they begin but are prone to false alarms. If you position the latter correctly they don't false alarm - that's the best option.
NT
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