Specifications
| Display | LCD |
| Measurement material | 9 kinds, steel and cast steel, metallurgical tool steel, forged steel, gray cast iron, ductile cast iron, cast aluminum alloy, pure copper, copper zinc alloy (brass), copper tin alloy (bronze) |
| Measurement range | 170~960HLD、20~68HRC、19~651HB、80~967HV、30~100HS、13~100HRB |
| Error of indication | ±8HLD(HLD=800) |
| Indication Repeatability | ±6HLD（HLD=800) |
| Hardness system | HL/HB/HRC/HRB/HV/HS |
| Measurement direction | 360° |
| Impact device | D type |
| Minimum radius of curvature of specimen | Rmin = 50mm (with special-shaped support ring Rmin = 10mm) |
| Specimen minimum Weight | Stable support 2kg (0.1kg needs to be coupled) |
| Minimum test thickness | 0.8mm |
| Allowable operating temperature | Temperature: 0~40 ℃ Humidity: ≤ 90% |
| Power | 2 AA batteries |
| Dimensions | 130*76*32mm |
| Weight | 340G (without battery) |
| Shell material | aluminum alloy |
| Impact device Mass | 75g |
Packing list
Host x1, Standard Hardness Block x1, Measurement Sensors x1, Portable Box x1, Manual x1, Small Support Ring x1, Cleaning Brush x1
After-sales instructions
Warranty days: 730 days
1. For product quality problems caused by non-human products of instruments and equipment, the manufacturer will provide free warranty services during the warranty period;
2. There is no warranty period for fragile and consumable parts, and if you find product quality problems after receiving the goods, please apply for return and exchange within 7 days, and you will not wait for the overdue ones;
[Note] For after-sales services outside the Chinese mainland, if the instrument requires repair, the shipping and possible associated taxes shall be borne by the sender. Generation address of the manual: http://en.nbchao.com/p/283/Specification.html , which is only used by users who purchase commodities from the NBCHAO.