Garages

Smoke Detectors

Only if vehicle exhaust is not a problem

then

  Photoelectric would be okay, otherwise heat detector is a better choice.

Only if vehicle exhaust is not a problem

otherwise if you burn anything! heating, cooking, or just for fun; oil, natural gas, propane, wood, coal or anything!

 yes

If

you use or store natural gas, methane or  propane

 yes if vehicle exhaust is not a problem, as ours is also a CO detector

• Wireless may extend coverage to an outbuilding if engine exhaust is not a problem,  interconnect them either by wire or RF thus Only if vehicle exhaust is not a problem

• Heat Detector a good first choice

• Handlights yes