LASER LEVEL = HORIZONTAL & VERTICAL BOTH , VERY THIN LASER CONTINUOUS LINE JUST 3MM WIDE , THE UNIT ITSELF IS SELF ADJUSTABLE , U CAN TIGHT IT ON ANY standard TRIPOD STAND ,

WORKS ON 4AA normal cells -

it is so much precise that u can check first check for your own satisfaction , with vertical plumb bob and horizontal water level also so u can check first its precison .

made in hong kong .