Compact and convenient, easy to use. This product will make your life easier and convenient. Features: Easy and accurate measuring: Digital LCD display for easy reading; Accuracy 0.3; Resolution 0.05. Multi-functional measurement: Combined with stainless steel ruler and angle sensor, measure angle and length (metric and imperial). Hinge mechanism on the angle ruler allows 360 degrees for measuring 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 all times. Automatically shut down 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 screen; Long press on/off switch to turn off the product. Durable: The angle gauge is made of high quality 2Cr13 stainless steel materials, which is more durable and can be used for a long time. With laser lettering, the scale on the ruler will not easy to disappear. Features: Type: angle gauge Quantity: 1pc Material: 2Cr13 stainless steel Color: silver and blue Measuring range: 0-360 / 0-200mm Measuring accuracy: 0.3 The graduation value: 0.05 Battery: 3v button cell (included) Size: 218 * 35 * 21mm / 8.58 * 1.38 * 0.82in Net weight: 209g / 7.37 oz Packing List: 1 * Goniometer 1 * Box Package