FNIRSI CTG-20 Coating Thickness Gauge

The FNIRSI CTG-20 is a handheld coating / paint thickness gauge for non-destructive checks on metal substrates. It measures non-magnetic coatings on steel/iron and coatings on non-magnetic metals such as aluminium, with auto substrate detection via electromagnetic induction and eddy current. Manual-aligned specs: 0–1400 µm, ±(3%+2) µm, 0.1 µm resolution, µm/mil units, zero and multi-point calibration, 600 mAh battery and USB-C charge. RTL main image shows English UI labels MIN/MEAN/MAX, SAVE, MODE and ZERO.

Specifications

• Model: CTG-20
• Type: Coating / paint thickness gauge
• Measuring range: 0 – 1400 µm
• Accuracy: ±(3% + 2) µm
• Resolution: 0.1 µm
• Units: µm / mil
• Calibration: Zero and multi-point
• Substrate: Auto Fe / Al detection
• Battery: 600 mAh, USB-C
• Size: Approx. 115 × 48 × 18 mm
• Weight: Approx. 83 g

Free UK delivery. Dispatched in 1–2 working days, delivered in 5–7 working days. Price incl. VAT, VAT invoices available.

FAQ

What is the CTG-20 used for?

Measuring paint/coating thickness on magnetic steel/iron and non-magnetic aluminium (and similar) substrates.

What measuring range is listed?

0 – 1400 µm with 0.1 µm resolution (FNIRSI manual / dealer specs aligned with 1688 600 mAh unit).

Does it auto-detect the substrate?

Yes. It uses electromagnetic induction and eddy-current sensing and auto-detects substrate type.

How is it powered?

Built-in 600 mAh lithium battery with USB Type-C charging (5V/1A).

Is UK delivery free?

Free UK delivery. Dispatched in 1–2 working days, delivered in 5–7 working days. Price incl. VAT, VAT invoices available.