| Hardness scale |
HL, HB, HRB, HRC, HRA, HV, HS |
| Memory |
48～600 groups （impact times: 32～1） |
| Measuring range |
HLD（170～960）See below table 1 and table 2 |
| Accuracy |
±4HLD (760±30HLD) error of displayed value |
| |
4HLD (760±30HLD) repeatability of displayed value |
| Standard Impact Device |
D |
| Optional Impact Devices |
DC/D+15/G/C/DL/E |
| Max. Workpiece Hardness |
996HV(For Impact Devices D/DC/DL/D+15/C) |
| |
646HB(For Impact Device G) |
| Min. Radius of Workpiece |
Rmin = 50mm (with special support ring Rmin= 10mm) |
| Min. Workpiece weight |
2~5kg on stable support |
| Min. Workpiece thickness |
5mm (Impact Devices D/DC/DL/D+15) |
| |
1mm (Impact Device C) |
| |
10mm (Impact Device G) |
| Min. thickness of hardened surface |
0.8mm |
| Power |
AA battery |
| Continuous Working time |
approx. 100 h (no back light off) |
| Operating temperature |
0~40℃ |
| Relative humidity |
≤90% |
| Overall dimensions |
120*60*31mm (main unit) |