1、Dual Measurement Modes: Measure angles between two objects and angles between the horizontal plane and the first object with this digital angle ruler. 2、Magnetic Base Level Box: Securely attach the angle measurement tool to saw tables, fences, blades, and other metal surfaces. Inverted display for easy reading. ABS plastic body with IP54 dust and water resistance. 3、Wide Measurement Range: Measure angles from 4 x 90° with a deviation of only +/‑0.1° for accuracy. Suitable for temperatures from 14℉ to 122℉ (‑10℃ to 50℃). Compact size for measuring in tight spaces and easy storage and transport. 4、Low Power Consumption: Powered by two 1.5V AAA batteries (not included) for over 50 hours of continuous use. Save energy and money with this digital angle ruler. 5、Additional Features: Backlit LCD screen for easy reading, automatic power off after 5 minutes, no need for any movement or button press. Protective case with safety belt loop for convenient carrying. Item Type: Digital Level Box Material: ABS Battery: 2 x AAA Batteries (not included) Measurement Range: 4 x 90° Resolution: 0.05° Accuracy: ±0.2° Repeatability: 0.1° 1 x Digital Level Box 1 x Special Screwdriver 1 x User Manual