OSID by Xtralis - Your Beam Detector Replacement | Fire Alarms Online
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Pertronic Industries Reappointed as VESDA and OSID Distributor in NZ » Pertronic Industries Limited
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OSID Open-area Smoke Detection - Eurofyre
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OSID Smoke Detection Open-area Smoke Imaging Detection (OSID) by Xtralis is a new innovation in projected beam smoke detection technology. By using... | By nimble Supply & Service Co.,Ltd. | Facebook