If you sleep better at night with an attic smoke detector they do make detectors for extreme temperatures.
Smoke alarm in attic.
Place additional attic smoke detectors on the finished ceiling as before installing one every 25 feet in an open space.
If you have a workman in they will stir up the insulation and create dust.
The us fire administration fema recommends that you have a heat detector rather than a smoke alarm in your garage.
They go from 15 to 200 degrees fahrenheit.
Another location in a home where you should have a heat detector rather than a smoke alarm is the attic.
Smokes are very sensitive to dust.
An ionization smoke detector smoke enters a chamber and interrupts an electrical current which triggers the alarm should be installed no closer than 20 feet from a cooking appliance and no.
Quoting the agencies no smoke alarm should be put into an unfinished attic dust temperature etc.
Alarms in unfinished areas may experience more nuisance alarms due to temperature fluctuations.
This includes attics crawlspaces garages unheated areas or porches.
I was told of an inspector that said a wireless smoke alarm should be put inside an attic to just lay it down presumably near the hatch.
The sensors in smoke and co alarms work best in temperatures between 40 f 4 c and 100 f 38 c.
Also was not mentioned was whether it was an unfinished attic or finished attic.
The only problem with these is the dust in most unfinished attics.