Compatible substrates
Steel / non-ferrous metal
DONGRU DR380A Dual-Mode Coating Thickness Gauge
Coating Thickness Gauges
DR380A
For general coating measurements on compatible ferrous and non-ferrous metal parts.
Request technical guidanceCapabilities / DR380A
Four confirmed points: material, measurement, readout and power. Full values are in the specification table below.
Steel / non-ferrous metal
magnetic + eddy current · 0-2000μm · ±(1%-3%)H+1.5μm
0.1μm/1μm/0.01mm · 2.8-inch color display
3.7 V lithium battery (3000 mAh) · 141×69×27mm / 242g
In practice
Cover thick and thin coating builds on steel and aluminium with one gauge. Automatic Fe/NFe switching handles mixed-material inspection, and the 2000 μm range keeps headroom for heavy coatings.

01
Fe/NFe switching
Magnetic induction for steel, eddy current for aluminium. The gauge selects the method, so a mixed-material line needs one instrument, not two.
Metal substrates only — not for coatings on plastic, wood or concrete.
02
0–2000 μm
2000 μm of range covers primer through thick protective systems, with a 0.3 mm minimum substrate thickness.
Stated accuracy is ±(1%–3%)H + 1.5 μm.
03
3.7 V 3000 mAh
2000
μm · measuring range
The 3000 mAh cell and 2.8-inch colour screen suit full-shift line inspection; a Φ16 mm minimum area fits most formed parts.
At curved parts the radius must be at least 5 mm convex or 25 mm concave.
Where it stopsFerrous and non-ferrous metal substrates only. Not for coatings on plastic, concrete or wood, and not for metal wall thickness.
Model / DR380A
Values come from one shared product record; confirm suitability for your measurement task.
Measuring range
Confirm your material, measuring method and application before selecting an instrument.
DR380A
Tell us your material, expected range and site conditions. We can help check the instrument and probe fit.