Compatible substrates
Concrete / cement mortar
Coating Thickness Gauges
DR200A
DONGRU DR200A Concrete Coating Thickness Gauge
Ultrasonic coating measurement for concrete and cement-based surfaces where magnetic methods are not suitable.
Request technical guidanceCapabilities / DR200A
What the product record supports.
Four confirmed points: material, measurement, readout and power. Full values are in the specification table below.
Measurement
ultrasonic (surface coating on a non-metallic substrate) · 40-1200μm（approx. 1.6-47mil） · ±(3%+3μm)
Readout
1μm / 0.001mm / 0.01mil · 2.3-inch color display
Power & body
dry-cell version（three AAA alkaline batteries, 4.5VDC） · 130×70×25mm / 125g（excluding battery、excluding probe）
In practice
Where the DR200A is used
Read coating thickness on concrete and cement-mortar surfaces where magnetic gauges do not apply. Up to three layers can be separated on suitable systems, and 2000 readings stay on the instrument.
01
Concrete and cement mortar
Ultrasonic pulse reflection
Coatings on concrete and cement-mortar surfaces are read with a 15 MHz single-crystal probe, where magnetic gauges do not apply.
Coating thickness only — not concrete wall or slab thickness.
02
Up to three layers
15P6 probe · 1000–3200 m/s
Up to three acoustically distinguishable layers can be separated on suitable coating systems; sound velocity is editable for the material.
A suitable couplant is required; interface clarity depends on the coating system.
03
Records by area
3 × AAA, not included
2000
readings · 10 groups
Readings are stored, reviewed and deleted on the instrument, organised in ten groups of 200.
Readings stay on the device; PC export and a traceable calibration certificate are not confirmed for this kit.
15P6 · 15 MHz probe · Up to 3 layers · 2.3-inch colour LCDDR200A · Concrete coating thickness gauge
Where it stopsCoating thickness on concrete and mortar only. Not for asphalt or bituminous surfaces, and not for concrete wall or slab thickness. A suitable couplant is required.
Model / DR200A
Technical specifications
Values come from one shared product record; confirm suitability for your measurement task.
40-1200μm（approx. 1.6-47mil）
Measuring range
Confirm your material, measuring method and application before selecting an instrument.
Measurement
- Measurement method
- ultrasonic (surface coating on a non-metallic substrate)
- Measuring range
- 40-1200μm（approx. 1.6-47mil）
- Compatible substrates
- Concrete / cement mortar
- Accuracy
- ±(3%+3μm)
- Resolution
- 1μm / 0.001mm / 0.01mil
- Probe / optics
- 15P6 probe / 15MHz
Instrument & environment
- Model
- DR200A
- Product code
- DR-CT-DR200A
- Display
- 2.3-inch color display
- Power supply
- dry-cell version（three AAA alkaline batteries, 4.5VDC）
- Dimensions / weight
- 130×70×25mm / 125g（excluding battery、excluding probe）
- Operating environment
- -10～+50℃, 20%-90%RH（standard probe）
DR200A
Discuss this model
Tell us your material, expected range and site conditions. We can help check the instrument and probe fit.