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Since the installation should be approved by the fire officer, so I don't think someone who is unprofessional can install such a system. So I want to just have a rough estimation of the hardware we need Thanks to everyone :)

This is just to roughly estimate the price of this system. I found this website that gives me a slight idea of how much the price would be...

Hi Guys I am doing a research for installing a wireless fire alarm system in a BB in London. The building has 6 floors and 8 rooms in each floor, so it is a good idea to divide it into 8 zones. would someone please give me a hint of what components should be bought for this system? 1...