The Spectra Precision Laser LL300-1 is your medium-range, high-accuracy solution. Ideal for basic slope work such as driveways and ramps, checking or leveling elevations, concrete forms, footings and foundations for small- and medium-sized jobs, and for excavations, digging footings and septic tanks. The LL300-1 includes the GR131 10ft. grade rod in tenths. Vertical Leveling Yes, Accuracy 3/32 in. at 100 ft., Rotation Speed 600 rpm fixed, Class Rating Class 3A/3R, Laser Output 5, Dimensions L x W x H in. 9 1/2 x 6 1/2 x 7, Working Temperature -4F-122F, Battery Type D, Tripod Mount Dimensions in. 5/8'-11, Visual or Audible Indicator Visible, Leveling Type Automatic electronic, Single, Pair, or Set Set, Horizontal Leveling Yes, Exterior Range ft. 1,300, IP Protection Class IP 54, Battery Life 90 hrs. of continuous use, Self Leveling Range 5º, Laser Wavelength 635-670 nm, Battery Included Yes, Indicator Type Low battery indicator. Rugged weather-resistant construction designed to handle harsh jobsite conditions - including drops from up to 3 feet Single cross-axis manual slope mode with cross-axis self-leveling allows grade matching for slope work while maintaining accuracy in the cross-slope
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