Ruan Smoke Alarms for Home 9V battery Photoelectric Alarm Conforms to EN14604 Standard Detector with 5 years 4 Pack

Replaceable battery: The fire alarm is equipped with a 9V battery with a service life of 5 years and can be replaced by itself. Loud alarm: When the smoke alarm detects a fire, the red LED flashes once per second, issuing an alarm sound of more than 85 decibels, which is easy to hear in the range of 20-40 square meters. Big test button: The smoke alarm has a big test button, so you can test it at any time. Small fire alarms: Smoke alarms are compact, easy to install and can be mounted on any ceiling, so you don't have to worry about it affecting the overall design of your home. Product safety performance：Product safety performance: the photoelectric smoke alarm complies with en14604 standard and as3786 standard., Weight: 0.3747858454 pounds, Manufacturer: Ruan