DO600: Waterproof ExStik | Extech Instruments
Extech DO600: Waterproof ExStik® II Dissolved Oxygen Meter DO sensor with easy to replace screw-on membrane cap with optional extension cables. The ExStik® II DO600 meter displays Oxygen level as percent of Saturation from 0 to 200. 0 percent or Concentration from 0 to 20.00 ppm (mg/L).