In addition to the impact device probe, the optional accessories of Deguang Electronic Leeb Hardness Tester also include printers, support rings, and connecting wires. Different optional accessories can be selected according to the actual measurement situation to facilitate the measurement of the hardness of metals and other materials.
Deguang Electronic Leeb Hardness Tester Cable is a cable that connects the measuring probe and the host of the Hardness Tester, which can extend the measurement length. In some narrow areas, it is necessary to use a connecting line to connect the Hardness Tester and the probe when it is necessary to measure a longer distance. It is convenient for long-distance measurement.

| serial number | model | Schematic diagram of support ring | Application |
| 1 | Z10-15 | ![]() | Measuring outer cylindrical surface R10‐R15 |
| 2 | Z14.5‐30 | Measuring outer cylindrical surface R14.5‐R30 | |
| 3 | Z25‐50 | Measuring outer cylindrical surface R25‐R50 | |
| 4 | HZ11‐13 | ![]() | Measuring the inner cylindrical surface R11‐R13 |
| 5 | HZ12.5-17 | Measure the inner cylindrical surface SR12.5‐R17 | |
| 6 | HZ16.5‐30 | Measure the inner cylindrical surface SR16.5‐SR30 | |
| 7 | K10‐15 | ![]() | Side Outer Spherical SR10‐SR15 |
| 8 | K14.5‐30 | Side Outer Spherical SR14.5‐SR30 | |
| 9 | HK11‐13 | Side outer spherical surface SR11‐R13 | |
| 10 | HK12.5-17 | ![]() | Side inner spherical surface SR12.5‐SR17 |
| 11 | HZ16.5‐30 | Side inner spherical surface SR16.5‐SR30 | |
| 12 | UN | ![]() | Outer spherical cylinder SR10‐∞ |