JER-100
Surface Roughness Tester
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Integrated, space-saving design
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Built for durability in harsh environments
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Ultra-fine 0.01μm precision
- FEATURES
- TECHNICAL DATA
- Multiple Parameters Measurement
Supports Ra, Rz, Rt, Rq to meet diverse measurement requirements - High Accuracy & Stability
Advanced DSP processor ensures fast calculation and precise results - Integrated Handheld Design
Compact and lightweight, ideal for portable and on-site use - Certified Calibration Standard
Optical glass calibration specimen, high accuracy, scratch-resistant, long service life - User-Friendly Operation
Built-in calibration function with simple and intuitive operation - Flexible Sampling Lengths
Selectable 0.25 mm / 0.80 mm / 2.50 mm - High-Visibility Display
LED dot-matrix screen with high brightness and wide viewing angle - Long Battery Life
Low power consumption with auto power-off function - Dual Charging Modes
Supports charger and USB charging, allowing operation during charging - Probe Protection Design
Equipped with protective cover to ensure measurement accuracy and extend probe life - Robust Housing
Aluminum body with strong anti-electromagnetic interference capability
| Item | Specification |
| Measurement Parameters | Ra, Rz, Rq, Rt |
| Measuring Range | Ra, Rq: 0.05 μm ~ 15.0 μm Rz, Rt: 0.1 μm ~ 50 μm |
| Sampling Length | 0.25 mm / 0.80 mm / 2.50 mm |
| Evaluation Length | 1.25 mm / 4.0 mm / 5.0 mm |
| Traverse Length | 6 mm |
| Resolution | 0.01 μm |
| Indication Error | ± (7–10)% |
| Repeatability | < 12% |
| Stylus Tip Radius | 10 μm ± 1 μm |
| Stylus Force | ≤ 0.016 N |
| Force Variation Rate | ≤ 800 N/m |
| Guide Head Pressure | ≤ 0.5 N |
| Battery | 3.7V Lithium-ion |
| Dimensions | 106 × 70 × 24 mm |
| Weight | 200 g |
Designed for fast and accurate surface roughness measurement
With an integrated sensor and main unit, this compact device ensures excellent portability and ease of use, making it ideal for on-site inspection and shop floor applications.
Applications
- Metal machining and precision components
- Automotive and aerospace parts inspection
- CNC machining and tooling industry
- Plastics, ceramics, and other non-metal materials
- On-site inspection and field measurement
