The economical AutoLaser 2125 offers: automatic electronic self-leveling, slope capability, variable width beam scanning, variable rotation speed and beacon direction control. It has a lightweight yet durable plastic housing.Has a range of 200 diameter with a reflective target and 2000 feet diameter with a detector. Accurate to less than 1/8 in. at 100. Wiggle scanning feature creates a line of concentrated laser light that expands visible range. Performs slopes on grade of + 6%. Includes laser, charger, and carrying case. 2 year warranty.