Working range of 1,150 ft (350 m) diameter. Simple one-button operation for quick start up. Height of Instrument Alert unit stops rotating when jarred to avoid bad readings.Single axis manual slope mode (with RC601 Remote Control). Rotor cage can be removed for precise 360Â°coverage. Complete kit available and fits in one case with tripod and grade rod. The item "Spectra precision laser Ll100 system" is in sale since Tuesday, March 12, 2019. This item is in the category "Business & Industrial\Test, Measurement & Inspection\Levels & Surveying Equipment\Levels & Autolevels\Rotary Lasers". The seller is "pickupjar" and is located in Port Edwards, Wisconsin. This item can be shipped to United States.