Specifications
| Shell material | aluminum alloy |
| 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 | Type D |
| 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 | 3mm |
| Minimum test thickness | 0.8mm |
| Operating temperature | Temperature: 0~40 ℃ Humidity: ≤ 90% |
| Power Supply | 2 AA batteries |
| Dimension | 130*76*32mm |
| Weight | 340 g (without battery) |
| 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: 365 days
1. Warranty: one year
2. Within one month after purchase, if there is a product quality problem under normal use and no damage to the appearance, the product of the same model and specification can be replaced with the invoice, valid warranty card and complete packaging;
3. There is no warranty for man-made failure or customer disassembly;
4. Products beyond the warranty period can be repaired by the original factory.
[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/27886/Specification.html , which is only used by users who purchase commodities from the NBCHAO.