$312.00
SE
DONGRU DR6000 Anticorrosive layer Thickness Gauge 0~6000μm
Magnetic Induction0 ~ 6000μm±3%

$257.00
SE
DONGRU DR3000 dual-use Coating Thickness Gauge 0~3000μm
Magnetic Induction + eddy Current0 ~ 3000μ m±3%

If you don't know how to choose "Coating Thickness Gauge", please consult customer service.