Features_x005F_x000D__x005F_x000D_Clear scale, easy to read._x005F_x000D_High quality material, durable in use._x005F_x000D_Widely used for students, school, class, labs and more._x005F_x000D_Simple structure, stable performances, easy installation._x005F_x000D_Knob type terminal, more convenient wiring, good conductivity._x005F_x000D_Specifications:_x005F_x000D__x005F_x000D_Material: Plastics_x005F_x000D_Range: -1 to 3A_x005F_x000D_Size: Approx. 9.3x9x5.7cm/3.66x3.54x2.24in_x005F_x000D_Note:_x005F_x000D__x005F_x000D_Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. _x005F_x000D_Due to the difference between different monitors, the picture may not reflect the actual color of the item._x005F_x000D_Package Includes:_x005F_x000D__x005F_x000D_1x Galvanometer