| name | Standard Sensors |
| application | Roughness measurement of planar and cylindrical surfaces |
| Specifications | The minimum diameter of the hole is 5mm and the maximum depth is 22mm when measuring the inner surface of the hole. |
1. For product quality problems caused by non-human products of instruments and equipment, the manufacturer will provide free warranty services during the warranty period;
2. There is no warranty period for fragile and consumable parts, and if you find product quality problems after receiving the goods, please apply for return and exchange within 7 days, and you will not wait for the overdue ones;