The Spectra Precision LL300N rotary laser package is an excellent choice for professional in the excavating and site prep industry who do not need slope settings. This Spectra Precision LL300N rotary laser kit includes the entire system you need to hit the jobsite running with the ability to pack it up all in one case! Up to 1,650 ft (500 m). 4°F to 122°F (-20°C to 50°C). 4 D-cell alkaline batteries (included). 5.2 lbs (2.4 kg). Spectra Precision LL300N Rotary Laser Level. (1) Laser Receiver (HL450 or HR320 or NONE).