Features: Easy to use, accurate measurement, easy to carry, durable and stable, practical and strong. Wide measuring range with high resolution and ease of operation. With clear LCD display for easy to read.Delivers ultra-accurate reading with no guessing error. Small in the dimension, lightweigt and can easily be-transported. Compact pocket size to take along. Applicable to test the penetration medium hardness of rubber, plastic, leather, multi-grease, wax, etc. Specifications: Material:ABS, Electronic Components Size:Approx.84x57x26mm/3.3x2.24x1.02inch Type of battery: 1.5V button cell Measuring range: 0~100H(ACD) Resolution: 0.5H(ACD) Needle stroke: 0-2.5mm. Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings. Package includes: 1x Digital Sclerometer