... HIGH QUALITY 1.THIS SYSTEM 3 PARTS:PART 1:FIRE ALARM & DETECTING,(SMOKE DETECTOR,HEAT DECTOR,PHOTOELECTRIC SMOKE ... DETECTOR,FIRE CONTROL PANEL,FIRE KEEP OUT LIGHT,DANGER WARNING LIGHT.PART 2:PIPES ... DESIGNED CONCENTRATION )c.DO YOU NEED FIRE ALARM PART 1 LIKE SMOKE DETECTOR,...CONTROL PANEL,/...... HFC-227EA Gas Fire Suppression System