https://www.homedepot.com/p/Kidde-Compact-4-in-Battery-Powered-Smoke-Detector-with-Photoelectric-Sensor-4-Pack-10SDR-21031438/328232400
Kidde Compact 4 in. Battery Powered Smoke Detector with Photoelectric Sensor (4-Pack), 10SDR...
Protect your home from fire accidents with the choice of this affordable Unbranded Smoke Detector AA BatteryOperated with Photoelectric Sensor Batteries...