Can it connect a network via Wi-Fi and have notifications the same as angel? On my phone? Also can I mix battery operated ones with mains ones? What so wrong with angel out of interest?
Battery only devices are generally not acceptable to comply with building regulations..
e.g. if you are doing some work that requires building control to sign off,
then from past experience battery only Fire Angels are not acceptable..
Had this a few years back with a customer who been a bit stitched up by a builder doing a two storey extension but had forgotten to account for any smoke alarms..
Customer wanted to fit Fire Angel battery devices..
Building control said not compliant..
Needed to be Mains-powered, Battery back-up interlinked..
The interlink could be hard-wired or wireless.. But the devices could not be battery only!
Customer rang me I fitted a mix of hard wire linked and wireless linked AICO's
Building control happy.. customer happy!
DIY'ers generally only get to fit a few smoke detectors in their life time..
Electrical contractor generally fit bucket loads..
And from that volume of experience they do tend to find which are the best build quality, reliability, have the best termination points for cables, get the least call backs from customers about false alarms faults etc..
So tend to only recommend the better products..
If you want to fit your fire angel choice, go ahead, nothing is stopping you..
Me personally I would never supply fire angel..
I have only supplied AICO for more years than I can remember..
Current have 4x Aico's in my own house, as I want to be sure my family and loved ones are safe!