SIC Industry Description

Industry: 3669—Communications Equipment, Not Elsewhere Classified
Establishments primarily engaged in manufacturing communications and related equipment, not elsewhere classified. Important products of this industry are intercommunication equipment, traffic signaling equipment, and fire and burglar alarm apparatus.

Burglar alarm apparatus, electricRailroad signaling devices, electric
Fire alarm apparatus, electricSignaling apparatus, electric
Fire detection systems, electricSignals: railway, highway, and traffic—electric
Highway signals, electricSirens, electric: vehicle, marine, industrial, and air raid
Intercommunications equipment, electronicSmoke detectors
Marine horns, electricTraffic signals, electric
Pedestrian traffic control equipment
Codes TitlesTotal Marketable US Businesses
3669Communications Equipment, Nec1,389
366900Communications equipment, nec181
36690000Communications equipment, nec181
366901Emergency alarms447
36690100Emergency alarms172
36690101Burglar alarm apparatus, electric76
36690102Fire alarm apparatus, electric55
36690103Fire detection systems, electric32
36690104Metal detectors54
36690105Sirens, electric: vehicle, marine, industrial, and air raid22
36690106Smoke detectors36
366902Transportation signaling devices460
36690200Transportation signaling devices211
36690201Highway signals, electric10
36690202Marine horns, electric9
36690203Pedestrian traffic control equipment61
36690204Railroad signaling devices, electric26
36690205Signaling apparatus, electric32
36690206Traffic signals, electric111
366999Communications equipment, nec, nec301
36699901Intercommunication systems, electric207
36699902Visual communication systems94