Reddit reviews First Alert BRK SC7010B Hardwired Smoke and Carbon Monoxide (CO) Detector with Photoelectric Sensor

Keep your family safe with this hardwired smoke and carbon monoxide alarm; The battery backup means constant monitoring, even if there's a power failureFeatures electrochemical Carbon Monoxide sensing technology as well as a photoelectric sensor equipped with Optipath 360 technology that enhances detection with 360 degree access and reliably detects smoke from smoldering firesIn case of danger, the loud spread spectrum alarm is designed to be heard easily by even those with some hearing issuesCan connect to other compatible BRK or First Alert detectors, to ensure all alarms will sound when threat is detected10 year limited warranty; Equipped with end of life signal chirp, so you know when it's time to replace the unit for your safetyRigorously tested to meet UL standardsFaster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safetyFirst Alert has been the most trusted brand in home safety since launching the first residential smoke alarm in 1958 (Based on a First Alert Brand Trust Survey in February 2018)