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| Product Name | LANDTEK SRT-6200 Roughness Gauge | KairDa NDT110 Roughness Gauge |
| Product Price | $770.00 | $448.00 |
| 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 | Ra Rz Rq Rt |
| Test object | General workpiece | General workpiece |
| Measuring Range | 5-50μm | 5-50μm |
| Accuracy | ±10% | ±10% |
| Sampling Length | Multi-range | Multi-range |
| Sensor Configuration | Standard | Standard |
| Applicable Workpiece | Flat Surface/Shaft | Flat Surface/Shaft Groove/Slot |
| Parameter comparison | ||
| display | Blue backlight, 4-digit display, 10mm LCD | |
| Measurement parameter | Ra、Rz | Ra、Rz、Rq、Rt |
| Measurement Range | Ra: 0.05~10.00 um / 1.000~400.0 uinch；Rz: 0.020~100.0 um / 0.780~4000 uinch | Ra、Rq：0.05-15μm；Rz、Rt：0.1-50μm |
| Accuracy | Not more than +/- 10% | |
| Indication variability | Not more than 6% | ＜12% |
| Sensor Measurement principle | Inductance | |
| Sensor radius | 10 um | |
| Sensor material | diamond | |
| Sensor force measurement | 16 mN(1.6 gf) | |
| Sensor Angle | 90° | |
| Sensor longitudinal radius | 48mm | |
| Sensor Max Drive Travel | 17.5mm / 0.7 inch | |
| Sensor sampling length | 0.25mm，0.8mm，2.5mm | |
| Driving speed measurement | When sampling length = 0.25mm, Vt = 0.135mm/s; when sampling length = 0.8mm, Vt = 0.5mm/s; when sampling length = 2.5mm, Vt = 1mm/s | |
| When driving speed returns | Vt = 1mm/s | |
| resolution | 0.001 um Measured value < 10 um; 0.01 um Measured value 10 um ≤ Measured value ≤ 100 um; 0.1 um Measured value ≥ 100 um | |
| Evaluation length Ln | 1~ 5 L optional | |
| Automatic shutdown | ||
| Operating environment | Temperature: 0~ 50℃ Humidity: < 80% RH | |
| power supply | Built-in ion rechargeable battery | |
| Dimension | 140 * 52 * 48mm | 106*70*24mm |
| weight | 420 g | 200g |
