Instruction: Given a question and the related document, predict if the question is answerable based on the information provided in the document. Output only yes or no.

Input:
Question: Are these UL certified?
Document: have found the smoke alarms to work very well , just had to go out and buy new batteries as the ones supplied were dead
Works great, easy to set up and use. It's a nice improvement over my old battery powered alarm, which goes off from cooking smoke all the time.
Wish they would have made it with AA or 9volt. * Non-standard screw bit. They use &#34;Pozidrive&#34; screws (not Phillips, not Flat-Head). I've got a complete tool set, so this didn't bother me too much. If you only have a basic tool kit, you'll probably be ok using a small Phillips. But come on! Why not use standard Phillips? * Mounting bracket is also potentially problematic.
Where were they all these years? I had to live with huge unsightly smoke alarms. These are so easy to install, easy on the eyes, perform well on tests, and fit places bigger ones did not. I wonder why it is not more common to make them this size?
When I saw the alarms I was intrigued by the size and decided to try the them. Each came with their battery,  I was able activate and mount them easily, and have tested them several times with no problems. Their small size allows them to blend in and several people have not noticed them until I point them out.
When I received the frustration free package, I thought Amazon only sent me one smoke detector - but there really is 3 inside the box, they're really small. I see that a number of people commented they only received one unit - I'd recommend ordering it from Amazon rather than a 3rd party if you're unsure.It's slightly thicker than a normal smoke detector, and therefore significantly smaller. Each smoke detector comes with a mounting ring and two screws with plastic drywall anchors.
When I burn things, it's usually a pot or pan I've forgotten, and that's real smoke, too.I read online that photoelectric alarms give fewer false alarms but trigger faster than ionization type alarms for smoldering fires. My experience with them has been that they are very reliable and fast at detecting actual smoke. Thankfully, I haven't had to test the assertion that the ionization alarms work somewhat better when there is open flame.
What you get in the box:3 micro smoke alarm units (white and silver)3 baggies, each containing 2 screws and 2 plastic fixing anchors3 instruction manuals (a bit redundant)Steps to install:Remove the base ring from the smoke alarm unit and drill appropriate holes in either your ceiling or wall, as desired.Affix the base ring with the included screws and optional fixing anchors (depends what kind of material you are drilling into).
We recently purchased a new home and upon inspection found the working smoke detectors were also the age of the home... about 18 years old. Current recommendations are that you replace your smoke detectors every 8-10 years. We jumped at the chance to try these out when we realized how small they were. The old fashion, giant annoying alarms are fine- but with our smaller home we wanted a more updated and less noticeable unit. These delivered!
We haven't installed these yet, due to remodeling, but I can tell you that they are LOUD! We tested all 3 of them and will be installing them in a couple of days. I really love the small size of these! First Alert has always made a great product and I feel certain these will do their job if the need arises. This is one of those things that you hope you never really have to use, but are comfortable knowing you have them...just in case.
Answer: no