Metal Samples offers a complete line of corrosion monitoring products, including corrosion test coupons, coupon holders, corrosion probes, corrosion instruments (portable meters, transmitters, data loggers – with wireless options), high-pressure access systems (mechanical and hydraulic), chemical injection systems, and non-intrusive ultrasonic monitoring products. Specialized monitoring systems for erosion, hydrogen permeation, biofilm formation. We design/manufacture custom monitoring solutions for challenging and unique applications. We have served the oil & gas industry for over 40 years.