Specifications: It has the advantages of high precision, fast response, accurate and quick measurement. Three specifications of alloy probes are exquisite in workmanship and durable. Using LED display chip, the LCD screen is clear and bright, and it can be viewed clearly at any angle. This hardness tester can display and measure humidity in 1 second, and its H key keeps the data reading convenient. Item Name: Hardness Tester Material: Plastic, Metal Battery Type: 1.5V Battery (Included) Measuring Range: 0~100H (ACD) Resolution: 0.5H (ACD) Pressure Needle Stroke: 0-2.5mm Data Lock: Yes Response Time: 1 Second Features: High Precision, Fine Workmanship, Durable, Easy to Use Size: 84mm x 57mm x 26mm/3.31" x 2.24" x 1.02" (Approx.) Notes: Due to the light and screen setting difference, the items color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Hardness Tester