Specification: Condition: 100% Brand New Item Type: Protractor Material: ABS Plastic Box Weight: Approx. 55g / 1.9oz Measuring Range: 4 x 90° Accuracy Error: ±0.3° Working Temperature: 0-40℃ Display Resolution: 0.1° Battery: 2 x 3V CR2032 Battery (Battery Not Included) Accuracy: 0.1° Working Humidity: 40pct-80pct Color: Black Size: Approx. 55x55x16mm / 2.2x2.2x0.6in Package List: 1 x Protractor (Battery Not Included) 1 x Manual Note: 1.Please allow 0‑1 inch error due to manual measurement. Thanks for your understanding. 2.Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. Features ABS Plastic Material: Digital protractor with ABS plastic box, is lightweight, sturdy and durable, easy to carry around. Used to set appropriate blade angle on the lathe, edge cutter, belt, workbench, and circular saw. Data Retention Button: With data retention button, it can save the readings for later reviewing and easy operation. Relative/ absolute measurement interchange at any location, easy to use with other measurement tools. Strong Magnetic: Digital protractor can easily and firmly attach to any metal surfaces, perfect to determine electric miter saw angle before cutting, verify angles during builds to essure accuracy, check table saw blade angles in relation to the table. etc. Automatic Shutdown: The protractor supports automatic shutdown after 5 minutes, value always shows right side up, whether the unit is upside down or not. Smart Technology Sensor: Support angle and slope reading conversion, compact and light, suitable for places with tricky angles.