SPEC Basic, Upgraded Bluetooth Materials: ABS+PC Measurement Range: 0-360° (4×90°) Dual-axis simultaneous measurement: X-Axis Angle α: -17.5°, Y-Axis Angle β: 23.3° Size:95.5*45mm/3.76*1.77inch FEATURES PROFESSIONAL-GRADE ANGLE & SLOPE MEASUREMENT WITH 0.1° ACCURACY - Achieve precise measurements for construction, engineering, and DIY projects with our high-resolution sensor. The digital display provides instant readouts to hundredths of a degree, eliminating guesswork from leveling tasks and ensuring perfect alignment every time. MAGNETIC ADSORPTION FOR HANDS OPERATION - The built-in strong magnets securely attach to metal surfaces, allowing stable measurements on pipes, beams, and machinery. This frees both hands for adjustments while maintaining consistent contact with the measured surfacing. MULTI-FUNCTION MEASUREMENT MODES FOR VERSATILE USE - Switch between absolute angle, relative difference, and slope percentage measurements with one button. The unit conversion feature instantly displays results in degrees, percent grade, or mm/m for compatibility with project requirements. SMART POWER MANAGEMENT WITH RECHARGEABLE BATTERY - The 400mAh lithium battery supports 30+ hours of continuous use and features auto power-off after 5 minutes of inactivity. Type-C charging provides quick refueling, while the automatic backlight ensures visibility in low-light conditions. VALUE LOCK FUNCTION FOR RECORDING CRITICAL MEASUREMENTS - Freeze the display to capture hard-to-reach or unstable measurements. The locked reading remains visible until manually cleared, perfect for documenting results or working in awkward positions. Package 1PC Digital display inclination box