Waterproof Dissolved Oxygen Meter
DO 300 from Oakton

Waterproof DO 300 Meter
Waterproof and dustproof with IP67 rating and they float!

  No meter warm-up required —take DO measurements right away
  Low maintenance galvanic probe comes with 10 or 25 ft length cable
  Memory stores and recalls up to 50 readings plus temperature
  Real-time clock stamps stored data and calibration data with date and time
  Key in salinity and pressure manually; meter automatically calculates offset values
  Dual display shows mg/L (ppm) or % saturation plus temperature (°C/°F selectable)
  Hold function, Ready indicator, automatic shutoff

Perfect for conditions that ruin ordinary dissolved oxygen meters! The completely waterproof OAKTON DO 300 meter reads dissolved oxygen in mg/L, ppm or % saturation. Its waterproof construction lets you thoroughly wash the meter to maintain working condition.

This meter does the work for you. It automatically calculates barometric pressure and salinity offset values, and it guarantees high accuracy with independent 100%, zero, and offset adjustment capabilities. Each meter includes an easy-to-service dissolved oxygen/temperature probe, electrolyte solution, and batteries.

Click below to download Acrobat (.pdf) file of:
DO 300 meter product bulletin
DO 300 meter manual
Tech Tip: Comparison between Polargraphic and Galvanic DO sensor technologies