Once a purchase is made, customers are provided with the smoke detector and other accessories such as a 3v lithium power cell. With the ten year lifespan of this battery, there’s no need to change your battery for a long time. The quality provided by the X Sense SD10 Fire Alarm cannot be contended with by any other smoke detector on the market. A titan in the industry, X Sense has launched its best product yet, the world’s first and only innovative smoke detector. All its operations conform to the UL217 standard, resulting in this product is UL certified. It also promises to operate with no issues for up to ten years; a promise cemented with the 10 year guarantee you receive per purchase.