It comes with a large LCD screen and is a lightweight, portable tool for your measurements. With the built-in strong magnetic base, you can connect your device to any iron material. It is an ideal protractor that can improve many areas such as living, architecture, woodworking, machinery and more. The large LCD display is easy to read, and the green backlight allows you to read measurements in low light. Press the Hold button to save the angle readings for easy recording and checking of measurement data. Features: It comes with a large LCD screen and is a lightweight, portable tool for your measurements. With the built-in strong magnetic base, you can connect your device to any iron material. It is an ideal protractor that can improve many areas such as living, architecture, woodworking, machinery and more. The large LCD display is easy to read, and the green backlight allows you to read measurements in low light. Press the hold button to save the angle readings for easy recording and checking of the measurement data. Specifications: Color: 1,2,3,4 (optional) Measuring range: 4 90 Screen resolution: 0 01. Working temperature: 0 C - 40 C Storage temperature: -10 C to 50 C. Waterproof rating: IP54 Energy: 2 x AAA (without battery) Size: 54 x 56 x 26 mm / 2.12 x 2.20 x 1.02 inches Weight: 50g Package contents: 1 x measuring device. 1 x user manual