Spectra Precision Laser HV401 Automatic Self Leveling... Recommendations

Total operating range of 2,600 ft with + or - 1/16" accuracy @ 100 ft Automatic horizontal and vertical self-leveling for the toughest interior applications The HV401 features a 4.99 mW bright visible beam, the most powerful on the market today Temperature calibrated accuracy for consistent performance over the entire job site When used in conjunction with the standard RC601 remote control, the single-axis mode provides matching with self-leveling cross axis for improved accuracy, Manufacturer: Spectra Precision Lasers / Trimble