| BRAND | System Sensor |
| Product | D4120 |
| Description | Smoke Detector |
| Internal code | IMP3322588 |
| Weight | 1.14 |
| Technical specification | 4-Wire Duct Smoke Detector 4 wire Photoelectric Duct Smoke Detector. Square or Rectangular Footprint. 24 or 120 volts. 100 to 4000 FPM. Max temp 158F. 1 SPST N/O alarm, 2 SPDT auxilliary and 1 SPST N/O supervisory contacts. |
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