Statements (23)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
electronic siren
|
| gptkbp:controls |
gptkb:radio_station
wired |
| gptkbp:feature |
modular design
directional sound multiple tone options voice capability |
| https://www.w3.org/2000/01/rdf-schema#label |
Modulator siren
|
| gptkbp:introduced |
1990s
|
| gptkbp:location |
gptkb:Australia
gptkb:Canada gptkb:Japan gptkb:United_States |
| gptkbp:manufacturer |
gptkb:Federal_Signal_Corporation
|
| gptkbp:powerSource |
AC power
battery backup |
| gptkbp:technology |
electronic siren
|
| gptkbp:usedFor |
state of emergency
civil defense tornado warning outdoor warning |
| gptkbp:bfsParent |
gptkb:Federal_Signal_Corporation
|
| gptkbp:bfsLayer |
6
|