YSI EcoSense DO200A DO Meter 606040

- Push button single point calibration with use of polarograhic DO probe with screw-on cap membranes or self-stirring BOD probe
- Automatic salinity and barometric pressure compensation
- 50 memory, auto-power off and IP67 waterproof casing
- Includes meter, polarographic DO probe (10 metre cable length), batteries and hard carrying case (order DO probe spares separately)