Magnetic Slope Measuring Instrument Gauge Inclinometer Multi-Function Angle Meter Ruler Tools Features: Made of ABS engineering material,durable. Bottom and side strong magnetic design, can be fixed on metal for easy measurement and recording (slope measuring instrument is divided into Fluorescent blisters, high-fluorescence blisters, which can be clearly seen at night. Angle comparison table, product back leaf 05.13 slope comparison table, easy to use comparison High precision bevel protractor declinometer: slope, horizontal and vertical Test range: 130 -0 degree (50 degree -90 degree -0 degree -90 degree -50 degree) 1'~8' (0.5'scale), 10%, 12%, 15%, 18%, 20% Accuracy: 1 degree Use: Civil engineering (city wall construction, dam engineering, pipeline engineering and other engineering construction projects. Interior decoration engineering, other engineering related to the slope and inclination angle) DIY Supplies:WoodworkingMeasurement Range:Other--Material:Plastic--Caliper Type:Dial Calipers Package included:(with retail packaged) 1 * Magnetic Slope Measuring Tool