(for more information contact deta's technical services department). optical smoke alarms incorporate the latest optical sensing technology, which is more sensitive at detecting large particles of smoke, which tend to be produced in greater amounts by slow smouldering fires. heat alarms form an integral...
(for more information contact deta's technical services department). optical smoke alarms incorporate the latest optical sensing technology, which is more sensitive at detecting large particles of smoke, which tend to be produced in greater amounts by slow smouldering fires. heat alarms form an integral...
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