NVAAV 4 Inch Boat Round Inspection Deck Plate Hatch with Detachable Cover and Pre-drilled Holes, Water Tight for Kayak Marine Boat Yacht Outdoor Installations

X-Sense Smart Smoke Detector XS01-M (1-Pack) and Wi-Fi Smoke Detector with SBS50 Base Station Kit FS31, Compatible with X-Sense Home Security App

X-Sense Smart Smoke Alarm with SBS50 Base Station XS0B-MR61 and Carbon Monoxide Alarm XC01-M

X-Sense Smart Smoke Detector XS01-M (1-Pack) and Wi-Fi Smoke Detector with SBS50 Base Station Kit FS51, Compatible with X-Sense Home Security App

X-Sense XS0B-MR31 Smart Smoke Alarm Kit with SBS50 Base Station and Carbon Monoxide Alarm XC01-M

X-Sense Smoke Alarm with SBS50 Base Station FS51 and Smoke and Carbon Monoxide Alarm SC07-MR

X-Sense Smart Heat Alarm XH02-M with 10-Year Sealed Battery, SBS50 Base Station Required, Model XH02-M, 1-Pack

X-Sense Smart Smoke Detector Carbon Monoxide Detector Combo, Battery-Operated (Not AC Hardwired) Interconnected Combination Smoke Carbon Monoxide Detector, 5 Detectors with 1 Base Station, SC07-MR51

X-Sense Smart Smoke Detector with Voice Alerts and 17 Locations, Wi-Fi Smoke Alarm with SBS50 Base Station, Test from APP, Wireless Interconnected Fire Alarm, Model XS0B-MR61