Product parameters Measurement range: 4X90 ° Product accuracy: ± 0.1 ° Resolution: 0.01 ° Charging method: USB TYPE-C Battery life: approximately 2.5 hours Operating temperature: 0-50 degrees Celsius Size:70*70*30mm/2.76*2.76*1.18 inch Description 1. High precision measurement Measurement range: 4X90 °, meeting various measurement needs. Product accuracy: ± 0.1 °, ensuring the accuracy of measurement results. Resolution: 0.01 °, providing finer measurement data. 2. Multi functional design Five sided magnetic strength: There are a total of five directions of magnetic attraction on the top, bottom, left, right, and back, making it easy to cope with measurement environments. Bidirectional: horizontal/vertical, providing precise line measurement. Unit switching: One click switch between four unit modes, including angle unit, percentage mode, metric deviation value, and imperial deviation value. 3. High definition display High definition backlight: With built-in backlight display, it can easily cope with various dark environments, and the values are clear at a glance. Automatic rotation screen: The screen supports automatic rotation, making data viewing more convenient and measurement results intuitive and visible. 4. Design Casing: Made of ASB material, it is drop resistant, so there is no need to worry about damage caused by falling. Lithium battery power supply: 3.7V lithium battery, supports USB TYPE-C charging, no need to replace battery, plug in and charge for measurement. 5. Portable and easy to use Compact and portable: The instrument is only 70mm in size and can be carried around without worrying about carrying difficulties. Automatic shutdown: Automatic shutdown function, energy-saving and power-saving. Package 1PC Protractor Rechargeable Inclinometer