Features 1. High-definition LCD display with black light 2. High-precision bubble bottle on the top, can work smoothly without battery 3. The V-shaped groove on the measuring base is convenient for connecting the round pipe 5. A powerful magnet is built into the base to fix the accessory on the surface of the iron 6. Hold function and 0 calibration 7. Low battery indicator 8. Absolute and relative measurement Product Details Measuring range: 4x90(0360) Unit of measurement: degree (), percentage (%), millimeter/meter, inch/inch Display: Advanced LCD display with backlight Fine resolution: 0.05 Degree: 0900.1, other angles 0.2jin Operating temperature: 32F to 104F (0C to 40C Power supply: 2 AAA batteries (not included if shipped from China) Size: about 68x62x32 mm (2.68x2.44x1.26 inches) (Length x width x height) Weight: about 100 grams