Hi, I just bought the Honeywell Le Sucre system off you. I would now like to add an external siren for outside of my property, however I can't believe how expensive the SEF8M is at £130 compared to other one's which can be bought for around £30~. Is that literally the only one which will work with my alarm system or do Honeywell/3rd party companies do others?

The Le Suckre system is wireless, so you're stuck with their own wireless siren I'm afraid - the wireless will have a bigger battery and RF electronics to communicate with the panel.

 

The cheap £30 sirens are wired - wired devices are all 12V and compatible across most wired control panels - hence choice and competition drives the price down.

Secware,

I am considering buying a Le Sucre system as well. Would you recommend it? Is everything supplied for a successful installation including the software for accessing Honeywell cloud services?

Many thanks

You access the cloud via the website. There isn't any software as such.