| BRAND | Notifier by Honeywell |
| Product | MODEL : FDX - 551 REM obsolete, replaced by NFX-TDIFF-IV |
| Description | HEAT DETECTOR |
| Internal code | IMP3317943 |
| Weight | 1 |
| Technical specification | EN54-5 : 2000 CLASS AIR 040441 VDCG200115 |
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