Features 1、Universal angle ruler, 360 degree comprehensive measurement. 2、High quality stainless steel material, good rigidity, no deformation. 3、Multi‑purpose measuring tool, angle ruler and ruler in one. 4、The locking knob is convenient to lock the angle at any position. 5、Digital display, digital display reading is more convenient. 6、CR2032 3V lithium battery power supply (not included), replaceable battery. Specification Item Type: Digital Angle Ruler Material: Stainless Steel Color: As shown in the picture Measuring Range: 0.00°~ 999.9° Working Temperature: 0℃ ~ +50℃ Working Humidity: ≤85%RH Working Current: ≤20uA (more than 5000 hours of continuous use) Resolution: 0.05°/ 3' Accuracy: 0.3° Power Supply: CR2032 3V lithium battery (not included) Package List 1 x Digital Angle Ruler(Battery Not Included) 1 x Instruction Manual