Engineering Inclinometer Universal Slope Measuring Ruler Multifunction Angle Meter $ 36.07 This multifunctional meter can be used for both slope measurement and slope setting. 22. Designed with comparison table of slope and angle, which has clear scales for easy reading. 33. Made of ABS engineering plastic, wear resisting and durable in use. 44. Ergonomically designed handle, comfortable grip, convenient operation. 55. Widely used in civil engineering, constructional engineering, interior decoration and other engineers involving slope and inclination angle.