The Defelsko PRB200C probe for the PosiTector is ideal for taking measurements on concrete, fiberglass, etc.
Measurement Range: 50 to 3800 μm/2 to 150 mils
Accuracy: (2 μm + 3% of reading)< (0.1 mils + 3% of reading)
For advanced models - Minimum Individual Layer Thickness - 50 μm/2 mils