Detecting levels of Manganese has never been so easy! The new and improved SenSafeâ„¢ Manganese Check eliminates interferences from several ions like copper, iron, cobalt, lead, nickel, etc. Designed to be a rapid, accurate alternative to wet chemical tests, SenSafeâ„¢ Manganese Check offers the user an easy dip-and-read test strip alternative for determining manganese concentrations in water. Detecting levels of <0.02, 0.05, 0.1, 0.2, 0.5, 1.0, and 2.0 ppm (mg/L), SenSafeâ„¢ Manganese Check (US Patent #6541269) is ideal for on-site testing when accurate results are immediately needed.