Try the AF11E!




This post has been edited by halcyon27: Oct 22 2015, 09:22 AM

I think there's a local distributor. I bought it long ago from a diver friend who knows them. Warranty is 10 years. Back then it was cheaper.
www.t-ecotech.com/af11e_n.html

Yes, photoelectric detects smoke of smouldering fires quickly. Large or multi story dwellings, get those that can sambung together so that the detecting alarm can trigger the rest to sound. Some security alarm system also has fire alarm module.