Measure dissolved oxygen as percent saturation or concentration in ppm or mg/L with temperature using the Orion Lab Star DO113 DO bench meter. Featuring a large, backlit display for easy viewability and small footprint to save bench space, this DO meter is ideal for simplified, budget-friendly testing. Use the onscreen stabilizing and ready indicators to help identify when DO meter readings are complete. View active calibration logs with date and time stamp, record key measurements using the 500-point data log with date and time stamp, and output all logs to a printer or computer