Feature: 1. Widely used in angle measurement in wood, automobiles, drilling machinery, etc. 2. The screen supports automatic flip, which is convenient for viewing data from all angles. 3. Digital angle meter, with LCD display screen, real‑time digital display, support fast reading. 4. The measuring range is 4x90°, with sensitive response, high accuracy and small error. 5. With strong magnets, it can be firmly fixed on the metal surface for easy measurement. Specification: Item Type: Angle Gauge Material: ABS Measuring Range: 4x90° Resolution: 0.05° Accuracy: ±0.2 Battery: 2 x AAA Batteries (Battery Not Included) Working Temperature: -10 - 50℃ How to Use: ON/OFF for turn on or off, short press the HOLD / TILT% button, the display will keep the reading data. Long press the HOLD/TILT% button for 2 seconds, the display will change to tilt%. ZERO clear ZERO description: 1. The measurement initially displays 0.00° on the LCD. When it displays "A" on the left "V" on the right, it means that the left is higher and the right is lower; when it displays V" on the left, "▲"On the right, it means lower on the left and higher on the right. 2. Turn on the instrument and start measuring, and read out the relative angle that is absolute horizontal. 3. Press the "Zero" button to reset the value for relative measurement.. Package List: 1 x Angle Gauge (Battery Not Included)1 x Manual