TECHNICAL DATA: Instrument accuracy ± 3 mm / 10 m Automatic leveling range ± 3° Battery power supply 4 x 1.5V LR6/AA Operating time - complete set of batteries 11 h Laser safety class/wavelength 2/515-530 nm Laser beam type fixed/keyed Laser diodes number/length Wavelength 2/515-530 nm Laser visibility zone diameter N/O*60 m/ 70 m Laser detection zone diameter 150 m Manual slope adjustment X, Yyes Instrument mounting thread 5/8''x11 and 1/4''x20 Operating temperature range -10 °C – +45 °C Housing tightness class IP 54 Instrument weight 0.475 kg (with batteries) Instrument transport dimensions: 9 x 14 x 18 cm STANDARD EQUIPMENT: Universal holder Batteries Cover