This DeWalt DW077 18V Cordless Rotary Laser and DW0772 Detector is a powerful and reliable tool for any DIY or professional project. The laser emits a bright Red beam that is four times brighter than a red beam, making it visible even in bright daylight conditions. The cordless design allows for easy use and the rotary feature allows for quick and easy measurements in any direction. This laser detector is perfect for those looking for a high-quality and durable tool that will not disappoint.