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Siemens FDO421 Photoelectric Smoke Detector

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$100.00
The Siemens FDO421 Photoelectric Smoke Detector is a plug-in, two-wire, addressable photoelectric smoke detector. The FDO421 supports two operation modes:
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Siemens FDOOT441 Multi-Criteria Fire Detector

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$99.00
The Siemens FDOOT441 Multi-Criteria Fire Detector is a multi-purpose, addressable detector providing a complete solution meeting fire detection needs for
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Siemens FDOT421 Intelligent Multi-Criteria Fire Detector

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$99.75
The Siemens FDOT421 is a plug-in, addressable, 2-wire, Intelligent Multi-Criteria Fire Detector that incorporates photoelectric and thermal sensors (Rate-of-Rise Detection:
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Siemens FDT421 Intelligent Heat Detector

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$97.00
The Siemens FDT421 is an intelligent plug-in Heat Detector for use with FireFinder XLS and Desigo Fire Safety Panels. FEATURES
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Siemens OH921 Multi-Criteria Intelligent Fire Detector

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$70.00
The Siemens OH921 is a plug-in, addressable, two-wire and multi-criteria detector (with both photoelectric and thermal inputs) compatible with FireFinder
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