Industrial Inspection & Measurement Instruments

Coating Thickness Gauges

DR120

DONGRU DR120 Coating Thickness Gauge

For coating-thickness checks on compatible ferrous metal substrates.

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Capabilities / DR120

What the product record supports.

Four confirmed points: material, measurement, readout and power. Full values are in the specification table below.

Compatible substrates

Ferrous metal

Measurement

magnetic · 0-1500μm · ±(3%H+1.5μm)

Readout

0.1μm/1μm · 2.3-inch large backlit LCD

Power & body

4.5VDC(three AAA alkaline batteries) · 126×64×28mm / 106g(excluding battery)

In practice

Where the DR120 is used

A one-piece magnetic gauge for coating checks on steel and iron parts: no cable, 1500 μm of range and 106 g in hand.

DR120 coating thickness gauge with integrated probe

01

Steel and iron, magnetic only

Magnetic induction

A single magnetic mode for coatings on ferrous parts, from 0 to 1500 μm, with no range switching to think about.

Ferrous substrates only — not for aluminium or other non-ferrous metals.

02

One-piece, no cable

Integrated probe

The probe sits in the housing, so the gauge goes straight onto the part; an 18 × 15 mm spot covers most surfaces.

Minimum substrate thickness 0.4 mm.

03

Light, AAA-powered

106 g · 3 × AAA

1500

μm · measuring range

106 g in hand with a backlit 2.3-inch display, running on three AAA cells for long inspection rounds.

Stated accuracy is ±(3% of H + 1.5 μm); at curved parts the radius must be at least 5 mm convex or 25 mm concave.

Magnetic induction · 0–1500 μm · 2.3-inch backlit LCDDR120 · Coating thickness gauge

Where it stopsFerrous metal substrates only. Not for aluminium or other non-ferrous metals, and not for metal wall thickness.

Model / DR120

Technical specifications

Values come from one shared product record; confirm suitability for your measurement task.

0-1500μm

Measuring range

Confirm your material, measuring method and application before selecting an instrument.

Measurement

Measurement method
magnetic
Measuring range
0-1500μm
Compatible substrates
Ferrous metal
Accuracy
±(3%H+1.5μm)
Resolution
0.1μm/1μm
Minimum substrate thickness
0.4mm
Minimum measurement area
18×15mm
Minimum curvature
convex 5mm;concave 25mm

Instrument & environment

Model
DR120
Product code
DR-CT-DR120
Display
2.3-inch large backlit LCD
Power supply
4.5VDC(three AAA alkaline batteries)
Dimensions / weight
126×64×28mm / 106g(excluding battery)
Operating environment
0℃-60℃, 20%-90%RH

DR120

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