Just about everyone knows how important smoke alarms are for home safety, but this information is just a part of what you need to know! For example, do you know how old your smoke detectors are? Why, you’re probably thinking, why would that be important? The best smoke sensors available today only work properly for 10-years. Question 2, Do you know what the test buttons checks? That blaring noise you endure when you push that test button only checks the battery and speaker condition. Please do not take a chance on whether you’re homes alarms will work when you need them. Check those manufacture dates. These date codes are either on the back of the alarm or inside where the battery is located. If the alarm has no date code, it is very old! When it is time to replace your alarms, check product reviews to get the best available.
What else should you know about smoke alarms. There are three types available: ionization sensing, photelectric, and a combination of the two. The ionization type is best to detect flaming fires and photoelectric are best to detect smoke. So, with that added knowledge, which one is best? Recent studies overwhelmingly recommend the combination of the two sensors in a single alarm. And yes, these are more expensive. In this case, you get what you pay for. Check out this excellent video demonstration of the three smoke alarm types in action. https://youtu.be/J9zEi1otL88
Chuck retired from an engineering management career to start a home inspection business