The best replacement for smoke detector is carbon monoxide detector.

The best alternatives to smoke detector are rated as following:

★★★★★	carbon monoxide detector
★★★★★	heat detector
★★★★	smoke alarm
★★	fire alarm
★★	ionization
★	sprinkler
★	photoelectric
★	carbon monoxide
	fire detector
	electric smoke detector
	ion

Your alternative for smoke detector is not listed? Suggest!

Speaking about smoke detector, one probably shouldn't forget about sounder base.

Other search terms related to smoke detector and their ratings are:

★★★★★	sounder base
★	carbon monoxide

You have in mind a companion for smoke detector and it is not yet here? Propose!

Google Trends

Scale is based on the average worldwide traffic of smoke detector in all years. Click on graph for more.

smoke detector

carbon monoxide detector

heat detector