Compatible substrates
Aluminium / copper
DONGRU DR370B Oxide Layer Thickness Gauge
Coating Thickness Gauges
DR370B
DONGRU DR370B Oxide Layer Thickness Gauge
For thin oxide-layer and coating checks on compatible non-ferrous metal surfaces.
Request technical guidanceCapabilities / DR370B
What the product record supports.
Four confirmed points: material, measurement, readout and power. Full values are in the specification table below.
Measurement
eddy current (digital oscillation) · 0-500μm · ±2%H+1.5μm
Readout
0.1μm/1μm · 2.8-inch color display
Power & body
3.7 V lithium battery (3000 mAh) · 141×69×27mm / 210g
In practice
Where the DR370B is used
Check oxide layers and thin coatings on aluminium and copper surfaces, where a magnetic gauge does not apply. The eddy-current probe covers 0–500 μm and the reading shows on the colour screen at the part.
01
Anodised and oxide layers
Eddy current
Measure anodised layers and thin oxide films on aluminium and copper parts with an eddy-current probe.
Non-ferrous substrates only — not for steel or other ferrous metals.
02
Thin layers, fine resolution
0.1 μm / 1 μm
A 0–500 μm range with 0.1 μm resolution suits thin paint and oxide layers that a standard coating gauge rounds off.
Stated accuracy is ±2% of H + 1.5 μm.
03
Small parts, long shifts
Φ12 mm · 3000 mAh
500
μm · measuring range
A Φ12 mm minimum measurement area and 0.1 mm minimum substrate suit small parts; the 3000 mAh cell runs a shift.
At curved parts the radius must be at least 5 mm convex or 25 mm concave.
Eddy current · 0–500 μm · 2.8-inch colour LCDDR370B · Oxide layer thickness gauge
Where it stopsNon-ferrous metal surfaces only (aluminium, copper). Not for steel or other ferrous substrates, and not for metal wall thickness.
Model / DR370B
Technical specifications
Values come from one shared product record; confirm suitability for your measurement task.
0-500μm
Measuring range
Confirm your material, measuring method and application before selecting an instrument.
Measurement
- Measurement method
- eddy current (digital oscillation)
- Measuring range
- 0-500μm
- Compatible substrates
- Aluminium / copper
- Accuracy
- ±2%H+1.5μm
- Resolution
- 0.1μm/1μm
- Minimum substrate thickness
- 0.1mm
- Minimum measurement area
- Φ12mm
- Minimum curvature
- convex 5mm;concave 25mm
Instrument & environment
- Model
- DR370B
- Product code
- DR-CT-DR370B
- Display
- 2.8-inch color display
- Power supply
- 3.7 V lithium battery (3000 mAh)
- Dimensions / weight
- 141×69×27mm / 210g
- Operating environment
- -10℃-60℃, 20%-90%RH
DR370B
Discuss this model
Tell us your material, expected range and site conditions. We can help check the instrument and probe fit.