The ST-I is Nittan's conventional ionisation smoke detector, using an ionisation sensing chamber to respond quickly to fast-flaming fires. It complies with BS5445/EN54 Part 7 and remains specified in applications where ionisation detection technology is preferred over optical sensing. An intrinsically-safe variant (ST-I-IS) is
Access the full product brochure for Nittan ST-I Ionisation Smoke Detector — specifications, installation guidelines, and compliance details in one document.
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