Instruction: Evaluate the answerability of a question by analyzing the related document, outputting yes if the document contains information addressing the question, and no otherwise.

Input:
Question: Do you sell external sensor? I put mine in the garage and it's always dark, I need an external sensor to sense the light.
Document: Well-built unit with sensitive light sensor. Needed to be able to power cycle input remotely. With a little tinkering, it stayed on Auto mode.
So far I have no problems with it. I replaced another brand that lasted 12 years and was no longer available. This thing is very, very heavy!
The power pack appears to be well made and is performing  as expected, though very large and heavy and requires a substantial support. I was able to use one of the 2x4s to at least get one of the supporting screws into a solid surface and the other one I was able to drive into the particle board underneath the siding and the unit has been holding up just fine for about a month. I feel confident that it will perform for many years to come.
very easy to set up and install. works great....lots of power . Would definitely recommend this transformer to my friends.
Works great. It's a heavy son of a b*&#ch, so you have to make sure to mount it into a stud. But it really does the job. Worth every penny.
Was able to quickly get this transformer up and running and it works like a charm. Wish it had manual timer capability!
WORKS AS ADVERTISED, REALLY HEAVY. HAD A SMALLER ONE AND NEEDED THE BIGGER ONE WITH MORE POWER. easy to use
Hope this helps....Outstanding product :)
Does exactly what it says. Have had it for about 2 months now, no problems whatsoever! Would recommend very highly.
Digital timer is not working. It is also to heavy compare to other one branch. Have to return and purchase another branch instead.
Answer: no