Coating Thickness Gauge Unit UT343A — 0–1750 µm, single‑coil continuous, for ferrous and non‑ferrous metals, auto‑rotating display, 199 readings memory

The Unit UT343A handheld coating thickness gauge measures non-destructively the thickness of paint, lacquer, plating and other coatings on metallic substrates. Using a single-coil continuous probe, it covers a measuring range of 0–1750 µm and supports measurements on both ferrous and non‑ferrous metals with automatic substrate recognition. The instrument stores up to 199 readings and offers an auto‑rotating display to keep results readable regardless of probe orientation, making it suitable for inspection, quality control and maintenance tasks in metal fabrication, corrosion protection and surface finishing.

Advantages

The single-coil continuous probe allows fast point-to-point measurements without switching probe modes between metal types. Automatic substrate recognition and an auto‑rotating display simplify operation on complex geometries and confined spaces. Compact handheld form factor and built‑in memory for 199 readings enable portable use and short-term data collection during on-site inspections. The device’s measuring range to 1750 µm accommodates thin coatings as well as relatively thick multilayer systems.

Suitable for

• Quality control of painted or coated metal parts in manufacturing
• Maintenance inspections for corrosion protection on steel and aluminium structures
• On-site spot checks during surface preparation and recoating processes
• Verification of coating thickness on automotive, marine and industrial components

Key specifications

• Measuring range: 0–1750 µm
• Probe type: single-coil continuous probe for ferrous and non‑ferrous substrates
• Substrate recognition: automatic for ferrous/non‑ferrous metals
• Display: auto‑rotating for ease of reading in varying orientations
• Memory: stores up to 199 readings
• Form factor: compact handheld design suitable for portable inspection

How to use

Switch on the gauge and place the single-coil probe on the coated surface perpendicular to the substrate. Allow the instrument to stabilise and read the displayed thickness value. The device will automatically detect the substrate type and adjust measurement mode as needed. For multiple measurements, move the probe to each test point; recorded values are stored automatically up to the 199‑reading capacity. Use the auto‑rotating display to view results comfortably when accessing tight or angled areas.

Usage recommendations

Before measurement, ensure surfaces are clean and free of loose debris, heavy rust or excessive surface roughness that could affect probe contact. For best repeatability, take multiple readings and average if required by inspection standards. Store the gauge in a protective case and avoid strong magnetic fields during measurement to maintain accuracy.