OHAUS Portable Dissolved Oxygen (DO) Meter

Starter 400D

Convenient Portable DO Meter for Wherever Your Work Takes You

  • Frequent membrane replacement not needed. Also, warm up and stirring of samples when taking measurements is not required.
  • The automatic/manual endpoints enable easy recall of last calibration data and stored information with one touch.
  • Simple calibration process offers quick delivery of measurements, and automatic temperature and barometric pressure compensation ensure accurate results.




400D Meter with IP54 Sets, Electrode Clip, Wrist Strap and 4 AAA Batteries (Electrode not included)


ST400D-B with STDO21 Probe


ST400D-B with STDO21 Optical DO Probe, Portable Bag