Home Slickdeals Prime Members: X-Sense Smart Smoke Detector Fire Alarm with Replaceable Battery for... Slickdeals Prime Members: X-Sense Smart Smoke Detector Fire Alarm with Replaceable Battery for $19.99 By ARCOM - 16 October 2023 20 0 SHARE Facebook Twitter Go to the deal page: Prime Members: X-Sense Smart Smoke Detector Fire Alarm with Replaceable Battery for $19.99