Small and convenient, easy to use. This product will make your life easier and more convenient.Features:Simple and accurate measurement:Digital LCD display, easy to read; accuracy 0.3; resolution 0.05.Multifunctional measurement:Combines stainless steel ruler and angle sensor to measure angles and lengths (metric and imperial). A hinged mechanism on the angle scale allows 360-degree measurements inside and out.Reset lock:Equipped with a reset button, the relative measurement can be zeroed at any angle; the locking screw is used to maintain the angle at any time. Automatic shutdown after 6 minutes of inactivity.Durable and simple on/off:Using 1 CR2032 button battery (included) can work for more than 2000 hours; short press the on/off switch to turn off the LCD screen; long press the on/off switch to turn off the product.durable:The angle gauge is made of high-quality 2CR13 stainless steel, which is more durable and can be used for a long time. Using laser engraving, the scale on the ruler is not easy to fade