Description 1. OLED display 2. Metal shell, pocket size 3. 4parameters: Ra, Rz, Rq and Rt 4. Easy operation with 3 keys 5. USB for charging 6. Protective shield for protecting pickup from damage 7. 16 hours continuous work on Li battery 8. Automatic shut d
1. OLED display
2. Metal shell, pocket size
3. 4parameters: Ra, Rz, Rq and Rt
4. Easy operation with 3 keys
5. USB for charging
6. Protective shield for protecting pickup from damage
7. 16 hours continuous work on Li battery
8. Automatic shut down for power saving
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