Statements (15)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
vehicle siren
|
| gptkbp:feature |
produces low-frequency tones
vibration-based alert |
| gptkbp:function |
low-frequency siren
|
| https://www.w3.org/2000/01/rdf-schema#label |
Whelen Howler
|
| gptkbp:manufacturer |
gptkb:Whelen_Engineering_Company
|
| gptkbp:marketedAs |
gptkb:Whelen_Engineering_Company
|
| gptkbp:purpose |
to alert motorists and pedestrians
to increase siren effectiveness |
| gptkbp:usedBy |
ambulances
fire trucks police vehicles |
| gptkbp:usedFor |
emergency vehicles
|
| gptkbp:bfsParent |
gptkb:Whelen_Siren_Controller
|
| gptkbp:bfsLayer |
8
|