The David White 7-Channel laser level detector allows user to locate laser beam easily in bright light and over long distances Designed for use with green beam lasers USA Compatible Tool: Green beam rotary laser level, Indoor/Outdoor Use: Outdoor, Laser Beam Color: Green, Display Type: LCD, Front and Back Display: Yes, Indicator Type: Visual and audible, Laser Type: Visible, Light Type: LED, Auto Shutdown: Yes, Channels (qty): 7, Mount Type: Hand held or rod mounted, Magnetic: No, Mount Bracket Included: Yes, clamp, Battery Type: 9 Volt, Battery Included: Yes, Dimensions L x W x H (in): 8 x 8 x 3