Instruction: Given a question and its related document, determine if the question is answerable by analyzing the information in the document. Output yes if the document addresses the question, or no otherwise.

Input:
Question: I have am old manual one. do I need a battery one or no battery one? system powered or battery?
Document: Simple. Exactly what is represented. Works great! My first one lasted 15 years. I will continue to buy this product
So my thermostat was busted and I had to change it, I bought it and the installation was straight forward. great product.
Because I ready have six Lux PSD011B in my house and we love them. They are very easy is set and very clear to read.
I bought this for an customer in a retirement community , they wanted and needed something easy to use with a large display .This is that kind of thermostat .Installation is a breeze and with the simple up arrow (warmer) and down arrow (cooler) setting the desired temp is easy for anyone.
Answer: no