I needed replacement fire alarms for my house. I chatted with someone from the electric bargain store and they suggested a replacement and said that they could send adapters that would work with my current product. Even though their products were more expensive I placed an order because I though the adapter would save me time and I would not need to call an electrician. I tried to install one unit. The adapter did not work with my wired unit. I had several family members try to install and they definitely were not correct. The adapters were not packaged so I am not sure what the problem was. I tried to call and see if there was another adapter that would fit my unit. No one there. They did answer my email the next day. They said I needed to send photos. I sent the photos and they responded by saying the I could order a replacement package from them. I told them I had already ordered from them and they just kept repeating the same thing to me. I chatted with someone and they said I would have to pay a 25% restocking fee (which was $50.00) and that I would not get my shipping costs back ($15.00 each way). I asked why I had to pay a restocking fee if they were getting the product back. Then I got disconnected. I called and asked for a supervisor (they never connected me to one). I explained my situation and they said that they would have to have another department call me back.