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| Product Name | KairDa NDT110B Pocket surface roughness Tester | Leeb leeb400 Roughness Gauge |
| Product Price | $442.00 | $630.00 |
| Details | Details | |
| Model comparison | ||
| Measurement principle | Contact type | Contact type |
| type | Portable | Portable |
| show | digital display | digital display |
| Measurement method | Needle tracing | Needle tracing |
| Measurement parameters | Ra Rz Rq Rt. | Ra Rz Rq Rt. |
| Measurement function | Surface Roughness | Surface Roughness |
| Test object | General workpiece | General workpiece |
| Probe Type | Integrated | Integrated |
| Calibrated certificate | No certificate | No certificate |
| Parameter comparison | ||
| Display mode | digital display | |
| Measurement parameter | Ra、Rz、Rq、Rt | Ra、Rz、Rq、Rt |
| Measurement Range | Ra、Rq：0.05 um ~ 15 um；Rz、Rt：0.1 um~ 50 um | Ra: 0.05-10.0μm, Rz: 0.1-50μm |
| resolution | 0.01 | |
| Indication Error | ≤±15% | ≤±15% |
| Indication variability | ＜12% | ＜12% |
| 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 | 6mm |
| Sensor radius | 10 μm±1μm | |
| Sensor force measurement | ≤ 0.016N | |
| Sensor guide pressure | ≤ 0.5N | ≤0.5N |
| Force change rate | ≤ 800N/m | |
| power supply | 3.7V lithium-ion battery | 3.7V lithium-ion battery |
| Dimension | 106 *70 *24mm | 106*70*24mm |
| Product weight | 200g | |
| Operating Conditions | Temperature: -20℃~ 60℃; relative humidity: < 90%; no vibration around, no corrosion medium | |
| Applicable standard | GB/T 3505-2000、GB/T 6062-2002 | |
