3PK Wireless Interconnected Smoke Detector and 1PK Wireless Interlinked Combination Detector, X-Sense SD19-W Smoke Alarm + SC07-W Combination Alarm

SD19-W wireless interconnected smoke alarm is built with a 10-year sealed lithium battery and connects to other X-Sense Link+ alarms for full-home coverage. SC07-W wireless interconnected combination alarm equipped with dual sensors and an advanced chipset for quick, accurate smoke and CO detection.