Specifications
| Measurement Accuracy | +/- 0.5% Actual Hardness |
| Indication Repeatability | ±4HL |
| Measurement range | 200~960HL |
| Minimum test thickness | < 1.27Cm (steel) |
| Measurement material | Steel & Cast Steel, Alloy Tool Steel, Stainless Steel, Grey cast iron, Ductile cast iron, Cast Aluminum, Brass, Bronze, Ripe Copper Alloy |
| Power Supply | 6V rechargeable nickel-metal hydride battery |
| Power Supply | 9V/500mA, Charging time about 2.5~ 3.5 hours |
| Working time | Approximately 150 hours (backlight off, no printing) |
| Paper width | 57.5±0.5mm |
| Communication interface | USB1.1 |
| Operating temperature | -15-40℃ |
| Dimensions | 212*80*32mm |
| Weight | 345g |
| Print roll diameter | 30mm |
Packing list
Host X1, D-Impact device X1, calibrated test block X1, standard suitcase X1, cleaning brush X1, small support ring X1, operation manual X1
After-sales instructions
Warranty days: 365 days
[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/6389/Specification.html , which is only used by users who purchase commodities from the NBCHAO.