High Accuracy: Photoelectric smoke detector is small, but it is more sensitive to light smoke and slow smoldering fires and more quickly to warn you, keeping your home safe 24/7. Small size, DIA 3.3 inches. If you have any problem with smoke detector, please contact us

Test Button: Test smoke alarm every week by pressing the test button in the middle of the cover for 5 seconds. Please change batteries when smoke detector inform low battery, smoke alarm “chirp” every 32 seconds and the red LED flashes at the same time

Easy Installation: Smoke alarm can be easily installed with mounting bracket. Not hardwired anymore and you can install it wherever you want, except bathroom and kitchen, keep 3 ft away from the kitchen, bathroom, or other high air flow areas

Sound & LED Warning: If fire alarm detects smoke or combustion particles in the air, it will sound in 85 dB and red LED will flash rapidly to remind every member to check. If fault, please clean dust or smoke inside smoke alarm with fan

Home Protection: According to US data analysis, a family fire begins every 38 seconds. The faster you know about the fire, the sooner you start moving your family, and the smoke alarm at work reduces the risk of home fire deaths by 50%

Mini but Mighty: Mini smoke detector that can be held with just one hand, is easier to install and disassemble. Product Dimension: 1.37"D x 3.52"W x 3.52"H