Overview Reviews Product Description This ferrous probe measures the thickness of non-magnetic coatings on magnetic metal substrates. For use with the REED CM-8822 coating thickness gauge. Reed Instruments Catalog CM-8822 Datasheet Product Videos Custom Field Product Reviews Write a Review Write a Review × Reed Instruments Replacement Ferrous Probe for CM-8822 CM-8822FPROBE Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *