That's why I had some years ago when it was not yet mandatory, my whole house equipped with smoke detectors. However, this had the disadvantage that they are working with 9 volt batteries and the batteries usually after 1 year were empty. At 10 smoke detectors that is quite annoying, because usually give the batteries their minds at night, and you will be woken every week by another smoke alarm that signals a low battery. Then I had no desire.
This smoke detector has a number of advantages. It has an integrated 3 V lithium-ion battery with a lifespan of up to 10 years. Critics might now argue that you can not change the battery, but as a smoke detector after 10 years should be replaced anyway, it does not matter in this case. Another advantage is the small size. With a diameter of about 9 cm This product is slightly more compact than many other models. In addition, it is available in 2 different colors. He has a power switch, the smoke detector did not have my past: it works only if it secured in the holder and with it the little button is pressed on the back. This is more likely to take him out for whatever reason, turn off by removing it from the holder, for example, if the battery loses its power. When activated,
After mounting the bracket with the screws provided in an appropriate place, so mostly on the ceiling in the middle of the room, the smoke detector is placed and held in place by a small rotation. Already he is armed. It can be tested for function and the LED flashes to indicate, the condition of the smoke detector is by pressing the button at the bottom. The instructions are in English though, but the rich illustrations makes sure that you understand the function and assembly without good English skills.
All in all I am very satisfied with this smoke alarm. Finally I have my peace for a long time and does not have to change the battery every year. The warning tone is felt as loud as my previous smoke detectors and to a small test with a lot of cigarette smoke, he has also triggered just as fast. Therefore my recommendation for those looking for a durable and reliable smoke detectors at an affordable price.