Instruction: Analyze a question and its supporting document. Predicting answerability based on the information provided in the document. Output yes if the document contains relevant information to answer the question, otherwise output no.

Input:
Question: Is the ge 250-co safeair carbon monoxide detector powered by 120v or battery operated
Document: Once there, you have to disconnect one of the power wires to a black box sitting in there which is the battery backup. Once you have done that, then you remove the power cord that goes to the box. This will power down the system.2)  After removing the faulty carbon monoxide detector until from the wall - you should have four wires connected to the device - 1 yellow, 1 blue, 1 red, and 1 black.
Like most, I had a CO-240 Safeair carbon monoxide detector installed in my house when I moved in back in 2006. Starting last week, my basement CO detector started beeping every four or five minutes. I was completely perplexed as the old CO-240 makes no indication of what that beeping represents. Googling it, I identified that a blinking green light and the beeping means that the unit has "expired" and needed to be replaced.
Once you do that, the ADT system will start up again, but you will no longer have a fault and can now rearm the system again like nothing happened.Ideally, you should have a carbon monoxide detector in the room, so replace it with one you can easily replace every few years instead of having it attached to your ADT security system this way.
Its a bit confusing what you should do when your carbon monoxide detector starts beeping after 5 years. Its because it is at its end of life and needs to be replaced. You want to buy this one and then follow the instructions here. http://www.250co.com/How-To-Replace  Call your alarm company and have them suspend your system for an hour while you make the swap.
Unless you actually have a carbon monoxide leak it's hard to comment further on how good this unit is. I hope no one buying one of these ever needs to find out...
Our central alarm system's carbon monoxide detectors expired, so we bought these and did the replacement ourselves. You have to be a little technical, and you have to call the alarm company to tell them when you are doing this, so that you don't set off the false alarm. But we managed just fine, and all is working well.
Like many of you, I bought this as a carbon monoxide alarm replacement to the GE-240 COe alarm that came with my ADT alarm system. After 5 years of use, my wife and I lost an entire night of sleep after the GE-240 COe went off at 1AM and kept beeping every 6 minutes.
Of course, the Safeair 240 is no longer made. They are now manufactured under GE 250-CO. The main differences are visual (the 250CO is vertical and the 240CO was horizontal) and electrical (the 250-CO has many more connectinos on the inside). Unfortunately, they are designed completely differently and it's not even close to a plug and play.
I researched the 250-CO detector quite a bit before buying it. This unit replaced a 240 which is no longer available.The most gripes I read about this were from people who mosy likely took it out of the box and tried to stick it up without reading the enclosed instructions. I read the instructions and put it up with little difficulty.The "footprint" of this device is different from the 240 it replaced, so we had to do a little painting.
It has been five years since my last CO2 detector replacement. It's time to replace all three of my 240-CO with the newer 250-CO. Everything smoothly as expected. Only annoying thing is the new veritical orientation of the 250-CO (vs the old horizontal orientation) which left the old screw holes uncovered.No complains about the seller either. Units were received in less than a week from date of order.
Answer: yes