The QL-30 is extremly accurate because the vial and the laser diode are attached together and connected through the metallic housing of the laser diode. A 1 mm movement of the bubble corresponds to a level difference of 3 mm in 10 m. The 3 AA-batteries allow an operating time of at least 35 hours. We sell over 250,000 items from over 500 manufacturers and have access to thousands more. Volume discounts available.
Business accounts available with approved credit.
No minimum order.