Compatible substrates
Steel / metal wall
DONGRU DR85A Ultrasonic Thickness Gauge
Ultrasonic Thickness Gauges
DR85A
DONGRU DR85A Ultrasonic Thickness Gauge
For general-purpose ultrasonic wall-thickness checks on suitable metal parts.
Request technical guidanceCapabilities / DR85A
What the product record supports.
Four confirmed points: material, measurement, readout and power. Full values are in the specification table below.
Measurement
ultrasonic · 0.85-400mm(steel) · ±(1%H+0.1)mm
Readout
0.01mm · 2.8-inch color display
Power & body
3.7V lithium battery（2000mAH） · 141×69×27mm / 162g（excluding probe）
In practice
Where the DR85A is used
A rechargeable general-purpose gauge for wall-thickness checks on pipes, boilers, pressure vessels and steel plate — 0.85 to 400 mm on steel with a 0.01 mm readout.
01
General-purpose wall checks
0.85–400 mm (steel)
Survey remaining wall thickness on process piping, boiler shells and pressure equipment across routine inspection rounds.
The surface must be accessible: clear the coating and apply couplant at each measurement point.
02
Fine 0.01 mm readout
±(1%H+0.1) mm
The 0.01 mm display resolves small wall-thinning steps, with max / avg / min grouping across a series of points.
Quoted accuracy is ±(1%H+0.1) mm — use the extra digits to track trends, not as a tolerance guarantee.
03
Rechargeable, colour screen
3.7 V 2000 mAh
400
mm · max steel range
The built-in 2000 mAh cell charges directly, and the 2.8-inch colour screen shows velocity, thickness and statistics on site.
Standard probe is rated −10 to +50 °C; a high-temperature probe covers media below 300 °C.
Pulse-echo · 0.85–400 mm (steel) · 0.01 mm resolutionDR85A · Ultrasonic wall thickness gauge
Where it stopsPulse-echo needs couplant on bare metal, so painted points must be cleared locally before reading. For measuring through the coating see the DR87A; for a 500 mm range and ±(0.5%H+0.05) mm see the DR86A.
Model / DR85A
Technical specifications
Values come from one shared product record; confirm suitability for your measurement task.
0.85-400mm(steel)
Measuring range
Confirm your material, measuring method and application before selecting an instrument.
Measurement
- Measurement method
- ultrasonic
- Measuring range
- 0.85-400mm(steel)
- Compatible substrates
- Steel / metal wall
- Accuracy
- ±(1%H+0.1)mm
- Resolution
- 0.01mm
Instrument & environment
- Model
- DR85A
- Product code
- DR-UT-DR85A
- Display
- 2.8-inch color display
- Power supply
- 3.7V lithium battery（2000mAH）
- Dimensions / weight
- 141×69×27mm / 162g（excluding probe）
- Operating environment
- standard probe:-10～﹢50℃（high-temperature probe<300℃）, 20%-90%RH
DR85A
Discuss this model
Tell us your material, expected range and site conditions. We can help check the instrument and probe fit.