Tyco 811PH Optical Smoke + Heat Detector (516.800.507)
The Tyco 811PH is obsolete and is replaced by the Tyco 851PH Multisensor in combination with the Tyco 4B-C Continuity Detector Base.
The Tyco 811PH is obsolete and is replaced by the Tyco 851PH Multisensor in combination with the Tyco 4B-C Continuity Detector Base.
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