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, electric | Railroad signaling devices, electric |
| Fire alarm apparatus, electric | Signaling apparatus, electric |
| Fire detection systems, electric | Signals: railway, highway, and traffic—electric |
| Highway signals, electric | Sirens, electric: vehicle, marine, industrial, and air raid |
| Intercommunications equipment, electronic | Smoke detectors |
| Marine horns, electric | Traffic signals, electric |
| Pedestrian traffic control equipment | |
| Codes |
Titles | Total Marketable US Businesses |
| 36690000 | Communications equipment, nec | 181 |
| 36690100 | Emergency alarms | 172 |
| 36690101 | Burglar alarm apparatus, electric | 76 |
| 36690102 | Fire alarm apparatus, electric | 55 |
| 36690103 | Fire detection systems, electric | 32 |
| 36690104 | Metal detectors | 54 |
| 36690105 | Sirens, electric: vehicle, marine, industrial, and air raid | 22 |
| 36690106 | Smoke detectors | 36 |
| 36690200 | Transportation signaling devices | 211 |
| 36690201 | Highway signals, electric | 10 |
| 36690202 | Marine horns, electric | 9 |
| 36690203 | Pedestrian traffic control equipment | 61 |
| 36690204 | Railroad signaling devices, electric | 26 |
| 36690205 | Signaling apparatus, electric | 32 |
| 36690206 | Traffic signals, electric | 111 |
| 36699901 | Intercommunication systems, electric | 207 |
| 36699902 | Visual communication systems | 94 |
