Feature: 1. Angle Finder: This digital inclinometer can easily measure and interconvert the angle and slope, simple and practical. 2. High Accuracy: Enables absolute measurement based on the horizontal plane with wide range and great accuracy as well. 3. Magnetic Base: The magnetic base can quickly fix on various surfaces, and the clear display ensures easier operation. 4. Auto Shutdown: Auto off function, when stationary for more than 3 minutes, it will automatically turn off the battery. 5. Easy Carrying: Designed to have a compact size and a light weight, both the storage and carrying are very convenient. Specification: Item Type: Inclinometer Material: ABS Measuring Range: 4 x 90° Resolution: 0.05° Accuracy: ±0.2° Repeatability: 0.1° Battery: 2 x AAA battery (delivery without battery) Operating Temperature: -10 to 50℃ Protection Class: IP54. Package List: 1 x Inclinometer1 x Screwdriver1 x User Manual1 x Storage Bag Note: Do not knock to cause irreversible damage.