DeWalt 18V Self Leveling Rotary Laser Combo Kit  DW077KD
Features:

    - Fully Automatic Horizontal & Vertical Self Leveling with Out-Of-Level Shutoff eliminates user error, ensures accuracy, and reduces set up time
    - Multi-voltage adapter accepts all DEWALT batteries 9.6V - 18V
    - Protected Rotary Head & Weatherproof Design deliver interior & exterior jobsite durability
    - Bright, Sharp, High Power beam delivers maximum visibility, even over long distances
    - Remote Control operated scan Mode creates a "laser chalkline" between two points for an extremely bright beam over long distances
    - Wireless (IR) Remote Control operation so that one person can setup and aim the laser over long distances
    - Digital Laser Detector detects rotary laser beam over long distances or in bright light conditions

SPECIFICATIONS

    - Power Supply 9.6V-18V DEWALT Batteries
    - Accuracy  100 ft. 1/8 in
    - Rotation Speed 0, 10, 60, 250, & 800 rpm
    - Self-Leveling Range ±5°
    - Indoor Visibility Range 200 (dia) ft
    - Range with Detector 2000 (dia) ft
    - Laser Class IIIa

Price:USD330/unit