Reliably protect you and your loved ones from smoke and fire; Advanced photoelectric sensors for rapid detection of smoke from smoldering fires; Sampling 3 times every 10 seconds, low false alarm rate Mini size alarm measures only 3.1 x 1.9 inches (78 x 48 mm); The low-key design makes it an unobtrusive addition to any home ABS plastic means alarm flame retardant and high temperature resistance; Make sure alarms work even in the most dangerous situations Simple operating instructions and wireless design to install this fire alarm in minutes Date First Available May 13, 2023