... instrument is so easy.Advantages:• Smallest and exquisite heavy metal tester• Sensitivity, reached ppb• Fast measuring, single ... zinc, cadmium, copper, and chromium, nickel, manganese, thallium, ferrum and other heavy metal ion monitoring can be expandable. • On- ... ionMercury,arsenic,lead,zinc,cadmium,copper,chromium,nickel,manganese,thallium,ferrum etc.Range0.5ppb~500ppmResolution ratio0.25ppbTime25 ...