![BRK 7016BTCA Photoelectric Smoke Alarm, 120V Hardwire with 9V Battery Backup](http://visorycanada.com/cdn/shop/products/image_{width}x.jpg?v=1658270394)
Photoelectric technology is generally more sensitive at detecting large particles, which tend to be produced in greater amounts by smoldering fires. Drastically reduces the most common causes of nuisance alarms when placed near kitchens and bathrooms