| BRAND | Tyco Fire |
| Product | 516.850.055 |
| Internal code | IMP546134 |
| Weight | 0.0076 |
| Custom code | 8531908590 |
| Technical specification | 851PH Photo Heat Detector. Generation 6 Addressable Photo-Optical and Heat Multi-Sensor Detector with built in Short Circuit Isolator and Two Way I.R. Communication for Marine Applications only |
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