Welcome to use GVDA GD210D multifunctional measurement instrument. Please read the operating instructions and instructions carefully,And be sure to follow the instructions in this document so that the best functions of the instrument can be performed. Please keep the instruction manual properly
1. This instrument can detect metals (steel bar, copper pipe) and cables hidden in walls, ceilings and floors; Metal, cable, wood, etc under plasterboard.
2、This instrument can measure the length, area and volume of the house by laser ranging. Add and subtract measurement, Pythagorean measurement, etc
