Innovation: curve, point point measurement, line laser marking function, easy to read angle and auxiliary level. Bluetooth 4.0 + APP Practicality: Distance/Area/Volume/Trapezoid/Indirect Measurement/Component: Utility New Patent (Line), 3*AAA Nickel Hydrogen Rechargeable Battery,2.4 inch High Definition Color Screen, Voice Broadcasting. Certification: IP65 waterproof and dust-proof.
