- 此類型通過更換測桿，能進行大範圍測量。
- 測桿直徑： ø4mm。
- 測桿帶有鎖定功能。
- 帶有恆定測力的裝置。
規格:
| Metric | |||
| Order No. | Range | Base Size | Rod Qty |
| 329-250-30 | 0-150mm | 101.6x16mm | 6 rods |
| 329-251-30 | 0-300mm | 101.6x16mm | 12 rods |
| Inch/Metric | |||
| Order No. | Range | Base Size | Rod Qty |
| 329-350-30 | 0-6in 0-152.4mm | 4x.63in | 6 rods |
| 329-351-30 | 0-12in 0-304.8mm | 4x.63in | 12 rods |
