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| Product Name | KairDa NDT110 Roughness Gauge | Leeb leeb451 Roughness Gauge |
| Product Price | $448.00 | $687.00 |
| Details | Details | |
| Model comparison | ||
| Principle | Contact | Contact |
| Instrument Type | Handheld | Handheld |
| Display Type | Digital | Digital |
| Measurement Function | Surface Roughness | Surface Roughness |
| Measurement parameters | Ra Rz Rq Rt | Ra Rz Rq Rt |
| Test object | General workpiece | Sand blasting shat blasting workpiece |
| Measuring Range | 5-50μm | 5-50μm |
| Accuracy | ±10% | ±15% |
| Sampling Length | Multi-range | Multi-range |
| Sensor Configuration | Standard | Standard |
| Applicable Workpiece | Flat Surface/Shaft Groove/Slot | Flat Surface/Shaft Groove/Slot |
| Parameter comparison | ||
| Measurement parameter | Ra、Rz、Rq、Rt | Ra、Rz、Rq、Rt |
| Measurement Range | Ra、Rq：0.05-15μm；Rz、Rt：0.1-50μm | Ra:0.05~10.0μm；Rz:0.1~50μm |
| Sampling length | 0.25mm，0.80mm，2.50mm | 0.25mm|0.8mm|2.5mm |
| evaluation length | 1.25mm，4.0mm，5.0mm | 1.25mm、4mm、5mm |
| stroke length | 6mm | |
| Indication accuracy | 0.01 | |
| Indication Error | ±(7-10)% | ≤±15％ |
| Indication variability | ＜12% | ＜12％ |
| Sensor stylus tip arc radius | 10μm±1μm | |
| Sensor stylus static force | ≤0.016N | |
| Sensor stylus force change rate | ≤800N/m | |
| Sensor guide pressure | ≤0.5N | |
| Battery | 3.7V lithium-ion battery | |
| Dimension | 106*70*24mm | 106*70*24mm |
| weight | 200g | |
| Operating temperature | -20℃~60℃ | |
| Operating environment relative humidity | ＜90% | |
| Operating environmental conditions | No vibration around, no corrosion medium | |
