Carbon dioxide detectors; Carbon monoxide detectors; Combustible gas concentration detectors; Fire alarm and emergency evacuation devices, namely, fire alarm control panels, smoke detectors, heat detectors, alarm pull stations, audible and visible notification appliances, strobes, sirens, bells, horns, and speakers; Gas alarms; Gas detectors for detecting the presence of gas; Gas sensors for measuring gas concentration; Gas testing instruments; Leak detectors for vacuum pumps; Smoke alarms

'alarm':12,19,26,41,65 'applianc':33 'audibl':29 'bell':36 'carbon':1,4 'combust':7 'concentr':9,55 'control':20 'detect':45 'detector':3,6,10,23,25,43,60 'devic':16 'dioxid':2 'emerg':14 'evacu':15 'fire':11,18 'gas':8,40,42,49,50,54,56 'heat':24 'horn':37 'instrument':58 'leak':59 'measur':53 'monoxid':5 'name':17 'notif':32 'panel':21 'presenc':47 'pull':27 'pump':63 'sensor':51 'siren':35 'smoke':22,64 'speaker':39 'station':28 'strobe':34 'test':57 'vacuum':62 'visibl':31

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