Extech Instruments CG304 Coating Thickness Tester with Bluetooth

Amazon

Magnetic induction for ferrous substrates Eddy-current measurement for non-ferrous substrates Easy-to use menu system Dot matrix LCD display with backlight and contrast Memory stores 2500 readings in 50 groups with 50 readings in each group, Weight: 0.3968320716 Pounds, Manufacturer: Extech

Test-meter.co.uk

Non-destructive coating thickness tester with Bluetooth. Measures ferrous/non-ferrous substrates. 2500-reading memory, dot matrix LCD, auto material recognition. Includes calibration kit, software, and protective case.