Product name: Digital Protractor Angle Finder Inclinometer  Material: Plastic Color: Black Measuring range: 4x90° Measuring accuracy: ± 0.2° Resolution: 0.1° Units: °, %, in/ft, mm/m Electrical source: 3V CR2032 Lithium battery Working temperature: 0℃~40℃ Environmental humidity: 40%-80% Size: 65x65x25mm Quantity: 1 Pc Features: 1. Portable size, convenient to co-work with other measuring tools and enlarge measuring range. 2. Magnetic design, stable adsorption on metal surface. 3. Relative / absolute measurement interchange at any position. 4. 4 kinds units, °, %, in/ft, mm/m. 5. Clear LCD screen display. 6. Perfect for woodworking, car repair, mechanical parts, home work and etc. Package included: 1x Digital Inclinometer   1x Storage Bag