Laser detector DW0892G

Working range 165" (Radius)Detects laser beam indoors and outBack-lit LCD display The DW0892G Green Laser Line Detector works up to 165 feet away. Detector includes a back-lit LCD display and an audible signal with adjustable volume control. Audible signal with adjustable volume controlAutomatic shutoff turns off detector if inactive for 5 minutesTop-mounted magnets for attachment to ceiling track or steel studsHeavy-duty quick release clamp included9V Battery Included