X-Sense 10-Year Battery Combination Smoke Carbon Monoxide Alarm Detector with Large LCD Display (Standalone Model)Brand: X Sense Color: White Features: Please Note: SC07 is a basic standalone unit; it does not support wireless interconnection, does not have Wi Fi, and cannot be used with a base station; for interconnection, search for SC07 W. For Wi Fi functionality, look for SC07 WX or SC07 MR 2 in 1 Protection: The combination smoke and CO detector detects both smoke and carbon monoxide faster and more accurately using a photoelectric smoke sensor and an