1. A Variety of Values: With high definition bright screen, one key conversion, one measurement can display 7 kinds of hardness values (HLD, HB, HV, HS, , , HRC). 2. Multi-Function: Data saving function, easy to record and view. 10 minutes automatic shutdown function. 3. High- Measurement: Accurate measurement value, display value error 6% (HLD = 800), display value repeatability of 0.8%; can automatically calculate the average hardness value. 4. Easy to Use: The hardness tester supports " Steel" materials. When testing " Steel" specimens with the D-type impact device, the HB value can be read directly, eliminating the need for manual tabulation. 5. Wide Application: Widely used in manufacturing, metal processing industry, chemical industry, commodity inspection and other testing fields. Is the material non-destructive hardness testing professional necessary instrument. Measuring Direction: Support 360 (vertical down, slant down, horizontal, slant up, vertical up) Measuring Range: (170-960)HLD, (17.9-69.5)HRC, (19-683)HB, (80-1042)HV, (30.6-102.6)HS, (59.1-88), (13.5-101.7) Hardness Unit: (HLD), Brinell (HB), B (), C (HRC), A (), (HV), (HS) Display Value Error: 6% (HLD = 800) Display Value Repeatability: 0.8% (HLD = 800) Display: Industrial-grade 128 x 64 graphic dot matrix LCD liquid crystal Power Supply: 1800mAh rechargeable lithium battery Continuous Working Time: About 20 hours Operating Conditions: Operating temperature -10-50 Storage Temperature: -30-60 Relative Humidity: 90% Applicable Materials: Steel and cast steel, alloy tool steel, stainless steel, gray cast iron, ductile cast iron, cast aluminum alloy, copper-zinc alloy (brass), copper-tin alloy (bronze), pure copper, steel Color: As Shown Material: Metal+Plastic Package Contents: 1Set x Leeb Hardness Tester Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.