Product information:Material: ABS plastic Measurement range: 4 × 90° Display resolution: 0.05° (<100°), 0.1° (100°–180°) Accuracy: ±0.1° Repeatability: 0.1° Operating temperature: 0°C to 40°C Specifications: 1. Portable and easy to carry. 2. Fast response for measurement readings. 3. Backlit LCD display. 5. Requires 2 AAA batteries (batteries not included). 6. Measurement range: 4 × 90°. 7. Reading resolution: 0.1°; measurement accuracy: 0.2°. 8. Multi-purpose measuring tool: combines a protractor, inclinometer, and spirit level in one device. 9. Magnetic base allows the tool to adhere to the surface being measured.