Designed as a retrofit solution for interconnected AC-powered smoke detector systems, only one 2GIG Smoke Detector Sensor is required to monitor the entire house and connect to the 2GIG alarm panel.

AirGuard senses cigarette and marijuana smoke -- and immediately alerts your disapproving landlord or dormitory RA.

The Remote Test Capable detector enables updated DNR (W) duct smoke detectors to be tested remotely when used in conjunction with RTS151 or RTS151KEY remote test stations.

X-Sense Mini wireless interconnected smoke detector review: This tiny alarm networks with up to 24 others It’s not a “smart” smoke alarm, per se, but it does offer solid protection on a budget.