Strobes are often found to be fitted to external sounders. They tend to be wired independent of the siren so they can be powered and energised separately. What could be the reason for this?

that's an obvious one you can do that

Is it because in the even of alarm sounder goes of after 15 min? So strobe is more like an notification that there is something wrong ?:P

id assume its to identify the unit in alarm vs the sea of other sounders?

 

old regs it had other purposes. I'm thinking I'm gonna help you fail

 

Quite often burglars are drug users. The purpose of a strobe is if the burglar has dropped an e recently and they see a strobe light they will stop what they are doing and start dancing like a loon. The strobe can keep them dancing for up to 12 hours, which is almost long enough for police to attend and catch them. If they can be bothered.

Newer strobes have a 24 hr guarantee which was brought in under the Sorry We Can't Attend Right Now, All Units Are Utilised Act 2015. Quote this and I guarantee you'll get a Distinction.

Secom (I believe) use their strobe to activate on confirm.

They used an extra red one mounted adjacent, from what I read here.

 

Yes I'm surprised that's allowed post PD6662 but they seem to do it even now, certainly the new carphone warehouse kiosk near us built about 18 months ago does.

Is there a particular reg you are thinking of that a confirmed strobe would contravene?