... Leveler with Tripod6-function:Laser point indicator, Level line, Vertical line, Cross line Ground level line, , Water surface, 2)This laser leveler ... can adjust its angle from 0 to 360 degree and level. 4)Wave length: 630~680nm 5)Optical power: <5mW 6 ... 7)Voltage: 4.5V (1.5 x 3 cell batteries) multi-function laser level with tripod