Feature: The product is made of stainless steel, which is not easy to rust and has a long service life. The scale is engraved by a precision machine. The figures are very clear and easy to read. The product combines the two functions of steel ruler and angle measurement. Angle measuring instrument adopts large digital display screen and reads digits clearly. The product is light weight and has magnets on its side. it is convenient to measure iron objects, the angle measuring ruler can be adsorbed on the surface of the product. Products are widely used in woodworking, construction, mechanical processing and other industries. Products support 5 minutes automatic shutdown, induction automatic boot-up. Specification: Model: AL1133C Material: Stainless steel Length: 300mm / 11.8in; 500mm / 20.0in(Optioanl) Display resolution: 0.05 degrees Accuracy error: ±0.3 degree Measurement range: 0-360 degrees Power supply: 1 x 3V CR2032 button battery(Without battery) Color: Blue Package list: 1 * Angle Ruler Note: The actual product color may deviate from the photo due to light. There may be a slight deviation in the measurement of product. 1、The product is made of stainless steel, which is not easy to rust and has a long service life. 2、The scale is engraved by a precision machine. The figures are very clear and easy to read. 3、The product combines the two functions of steel ruler and angle measurement. 4、Angle measuring instrument adopts large digital display screen and reads digits clearly. 5、The product is light weight and has magnets on its side. it is convenient to measure iron objects, the angle measuring ruler can be adsorbed on the surface of the product.