... 3.BRAND PRODUCT,HIGH QUALITY 1.THIS SYSTEM 3 PARTS:PART 1:FIRE ALARM & DETECTING,(SMOKE DETECTOR,HEAT DECTOR,PHOTOELECTRIC SMOKE ... ,FIRE CONTROL PANEL,FIRE KEEP OUT LIGHT,DANGER WARNING LIGHT.PART 2:PIPES & CONNECTION(HIGH PRESSURE PIPE NET WORK,DIVISION VALVE ... DECIDE THE DESIGNED CONCENTRATION )c.DO YOU NEED FIRE ALARM PART 1 LIKE SMOKE DETECTOR,...CONTROL PANEL,/...... HFC-227EA Gas Fire ...