Review on 🔥 Enhance Fire Safety with Kidde SM120X Interconnect Accessories Smoke Relay Module by Masud Taylor

I have this to activate the fire bell and strobe light outside my detached garage when there is a fire inside. Just rebuilding after the fire burned for over 3 hours in the middle of the night before anyone noticed. This should work for my needs, but they could have put this in a sealed box, it's just a 4 inch piece of heat shrink tubing around the circuit board and sandwiched between the wires. Unfortunately, with a device that is only needed if the building is on fire, I have to ensure that it is installed in a metal switch box to provide additional protection for that connecting relay. This should be a more reliable build quality, hopefully it will work before the heat shrink tubing heats up and the internal circuitry can fall out.