Specifications include, but are not limited to: Unit bid shall be automatic grade laser; Unit bid shall meet all Indiana State and Federal Law including OSHA requirements. Unit bid shall be equipped with equipment and features listed in the specs and shall be manufacturer standard, factory installed unless the equipment and/or feature(s) specified herein is not available from the manufacturer, and then an INDOT approved alternate aftermarket may be acceptable. Grade laser shall be a Spectra Precision GL612N Single Grade Laser or INDOT approved alternate. The unit shall be an automatic self-leveling grade laser; The unit shall have a grade capability from -25% to +25%. The unit shall have up to a 2,600 ft diameter range. The unit shall have automatic grade matching.