| Code | Range | Accuracy | Resolution | Remark |
|---|---|---|---|---|
| 1504-300A | 5-300mm/.2-12" | ±0.05mm | 0.01mm/0.0005" | measure ring face width (C) of GRO |
| 1504-300B | 25-300mm/1-12" | ±0.05mm | 0.01mm/0.0005" | measure pitch diameter (P) of GRO |
| 1504-300AWL | 5-300mm/.2-12" | ±0.05mm | 0.01mm/0.0005" | measure ring face width (C) of GRO |
| 1504-300BWL | 25-300mm/1-12" | ±0.05mm | 0.01mm/0.0005" | measure pitch diameter (P) of GRO |





