JLT1089 Features: * Red industrial alignment dot laser * Projects a vertical and horizontal laser chalk line * Solid glass optics are designed for harsh work environments * Wedge internal prisms steer beam and maintain beam alignment for impact resistance * Beam-on indicator verifies unit is working from a distance * ""O"" ring seal - water and oil proof to PI67 standards * Accuracy: +/-0.13""/100" Dimensions: * Dimensions: 3.25"" H x 4.25"" W x 3.75"" D