Check the listing for details. System Sensor i3 2W-B Photoelectric Smoke Detector. Condition: New – Open box. Listed at 54.99 USD. Introducing the System Sensor i3 2W-B Photoelectric Smoke Detector No extras included. Just what’s shown in the pictures Please note the this item has marks and scratches from the previous owner Only what you see on the picture Please see the picture for reference on the conditions Picture at the best description on this item Please feel free to ask any questions before you bought this item Your satisfaction is very important to us, if you experience a problem of any kind with your purchase please contact us first before leaving any feedback or opening any claims. Issues will be resolved more efficiently if you contact us first and deal directly with us. We do stand behind our products and will do anything in our power to make sure that you feel satisfied with your purchase.