Compact and comvenient, easy to use. This product will make your life easier and more convenient. Features: Easy and Accurate to Measure: Digital LCD display for easy reading; Accuracy 0.3; Resolution 0.05. Multi-functional Measurement: Combined with stainless steel ruler and angle sensor, measuring angle and length (metric and imperial). Hinge mechanism on the angle ruler allows 360 degrees to measure inside and outside. Zeroing and Locking: Equipped with reset button for zeroing at any angle for relative measurement; Locking screw is intended to hold angles at any time. Automatically shut off after 6 minutes if there is no operation. Durable and Simple on/off: Capable of working more than 2000 hours with one piece of CR2032 button battery (included); Short press on/off switch to turn off the LCD display; Long press the on/off switch to turn off the product. Durable: The angle gauge is made of high quality 2Cr13 stainless steel material, which is more durable and can be used for a long time. With laser lettering, the scale on the ruler will not easy to fade. Specifications: Type: Angle Gauge Quantity: 1pc Material: 2Cr13 Stainless Steel Color: Silver & Blue Measuring Range: 0-360/0-200mm Measuring Accuracy: 0.3 Graduation Value: 0.05 Battery: 3v button battery (included) Size: 218*35*21mm/8.58*1.38*0.82in Net Weight: 209g/7.37oz Packing List: 1* Goniometer 1* Box Package