Features FLEXIBLE SWITCHING: The digital inclinometer support relative and absolute measurement conversion, as well as angle and slope conversion DATA LOCK: The digital inclinometer protractor come with data lock function for easy reading. Absolute zero measurement based on the horizontal plane is realized ENERGY SAVING: The inclinometer automatically turn on the backlight when turned on and automatically turn off after 30 seconds of rest. The inclinometer automatically turn off after 3 minutes without response LIGHTWEIGHT AND PORTABLE: The pocket digital inclinometer has a portable size that make it easy to use with other measuring tools to extend the measurement range STRONG ADSORPTION: Magnetic digital inclinometer has a magnetic adsorption measuring surface, which can be adsorbed on the workpiece to be measured Specification: Item Type: Pocket Digital Inclinometer Material: ABS Measuring Range: 4x90° Display Resolution: 0.05° Accuracy: ±0.2° Repeatability: 0.1° Power Supply: 3.7V lithium battery 260mah Operating Temperature: -10℃ ~ 50℃ Product Size: Approx. 36 x 36 x 20mm / 1.42 x 1.42 x 0.79in Package List:1 x Inclinometer1 x USB Cable Package List 1 x Inclinometer 1 x USB Cable