SIMULTANEOUS HORIZONTAL AND VERTICAL LEVELLING: Complete parallel work on floors, ceilings, and walls with the one horizontal and two vertical lines, precise results within ± 0.2 mm/m / . DUAL POWER SOURCE: For added flexibility, the device can be used with either a 12 V Li-ion battery or standard AA batteries using the battery adapter ( AA Batteries Included - 12V Lithium Battery NOT INCLUDED ) - Can be functioned by any Bosch Blue Tool Battery 12V.
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