Simple, handy instrument with sensors for simultaneous measurement of six parameters.

• 20 samples of data for 6 parameters can be stored in memory to be recalled later for display and print out.
• Automatic salinity correction function makes it possible to measure DO in both fresh water and salt water.
• Expanded display function handles any need for more precise data.
• Direct-submersion sensor, no need to collect samples.
• Data back-up function keeps data safe even if batteries run down.