The HI96748 Manganese Low Range Portable Photometer combines accuracy and ease of use in an ergonomic, portable design. A user can accurately determine the concentration of manganese within a 0 to 300 μg/L (ppb) range using the HI93748-0 ready made reagents. The HI96748 offers many advanced features including the exclusive CAL Check™ function used for performance verification and calibration of the meter.