Bosch 500 Ft. Self-Leveling 360 Degree Rotary Laser Level

360 degree one-person leveling system. Smart Pendulum Leveling System automatically levels the laser and indicates out-of-level, locks when switched off. Laser detector with extended range option when extra distance is required. 1/4"-20, 5/8"-11 mount threading. 14 deg F to 122 deg F operating temperature. 33 In. x 18-1/4 In. x 7-1/2 In. Weight: 22-1/2 Lb (pound). Kit includes: receiver with bracket, aluminum tripod, grade rod, (6) AA batteries, all-in-one carry case.