Nest Protect, 2nd Generation, Smoke Carbon Monoxide Alarm, Dual Sensor, Ionization, Photoelectric, Long Life Battery, Thinks, Speaks, Alerts Your Phone, Speaks To Tell What’s Wrong Where, Sends Alerts To Your Phone In Case You Aren’t Home, Split Spectrum Detects Fast Slow Burning Fires, Can See The Invisible, Poisonous Carbon Monoxide You Can’t, UL Listed, Long Lasting Sensors Keep You Safe Sound For Up To 10 Years, SIGNED RESELLER AGREEMENT IS REQUIRED TO ORDER