| Code | Type | Range | Accuracy |
|---|---|---|---|
| 7138-121 | Optical grating | 12mm | ±1µm |
| 7138-125 | Optical grating | 12mm | ±2µm |
| 7138-305 | Optical grating | 30mm | ±3µm |
| 7138-505 | Optical grating | 30mm | ±3.5µm |


Linear gauge type: optical grating
Dust/waterproof: IP67
Optional accessory: display unit (code 7131-1A, can output keyboard signal, transmit data to excel, word, txt etc., also can output serial signal and transmit data to serial communication software)
| Code | Type | Range | Accuracy |
|---|---|---|---|
| 7138-121 | Optical grating | 12mm | ±1µm |
| 7138-125 | Optical grating | 12mm | ±2µm |
| 7138-305 | Optical grating | 30mm | ±3µm |
| 7138-505 | Optical grating | 30mm | ±3.5µm |
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