Iron Test Strip 0-500 PPM for Measuring aqueous Fe2+ (Ferrous) Iron in Water Samples [50 Strips] NOT for The Human Body.

Easy to read distinct color blocks at 0, 3, 10, 25, 50, 100, 250, 500 PPM Fe2+Comes in a bottle with a moisture wicking capNo extra equipment or chemicals required for quick and accurate testingDissolved iron is an important indication of the level of corrosion, making it a critical parameter to monitor especially in closed loop systems