Precise and robust rotary laser level with a 400m working range when used with a receiver. With one-button operation and self-explanatory display. Automatic shock warning function prevents levelling errors in the event of vibrations or shocks. Suitable for tough applications in building construction, civil engineering and landscaping. IP65 rated. 400m Working Range With Receiver Accurate to ± 0.08mm/m X Single Grade Slope Facility Horizontal Line IP65 For Indoor & Outdoor Use ABS Plastic Self-Levelling up to 5° Dust & Splash Protection 400m Working Range With Receiver Accurate to ± 0.08mm/m X Single Grade Slope Facility Horizontal Line IP65 For Indoor & Outdoor Use ABS Plastic Self-Levelling up to 5° Dust & Splash Protection