Check the listing for details. M&A INSTRUMENTS 86031 Water Quality Meter PH D.O. Conductivity Salinity Meter. Condition: New. Listed at 450.00 USD. M&A INSTRUMENTS 86031 IP67 Combo Water Meter-pH/EC/SALT/TDS/D.O Features: Large LCD to display multiple parameters simultaneously: pH, Conductivity or TDS or Salinity, Dissolved oxygen, Temperature (by using different probes)Displayed parameter is decided by probe typeWater proof function as IP67Fast measuring of dissolved oxygen value Accurate replaceable probes with anti-collision capAuto ranging for conductivity measurementAuto temperature compensation (ATC)99 points memories w/recall functionMultiple points calibration: 3 points for pH, 1 point for D.O., 4 points for conductivityManually altitude and salinity compensation function for D.O. measurementEasy replacement probesTemperature unit ℃/℉ is switchable1 hour auto power offExcellent to use in fresh or sea water aqua farmApplication Application of 86031 IP67 Combo Water Meter-pH / Conductivity / SALT / TDS / D.O:The 86031 Combo Water Testing Meter can measure the pH, Conductivity or TDS or Salinity and Dissolved oxygen depend on which kind of probe attach to the meter or user could attach three kinds of probes at the same time. So the 86031 Multiple Parameters Water Testers could be operated as the pH meter, conductivity meter, TDS meter, Salinity meter or D.O. meter as user needed.We design different color connector on the meter, user only needs to screw on the probe with the same color, and then get the measuring reading accurate and fast.User could change the probe or screw on the 86031 Combo Water Quality Measuring Instrument easily. And in order to avoid broken by the stone or particle attacking in the measuring environment, we have developed the specific anti-collision cap on each probe. So the 86031 Combo Water Testing Meter would be the best tool for all professional measuring purposes, including the Aquaculture, Aqua farm, LAB, swimming pool or water treatment business, or other related industry, no matter the fresh or sea water.Technical Specifications Model 86031 pH Measuring Range 2.00~12.00 pH Resolution 0.01 pH Accuracy ±0.1 Conductivity Measuring Range 0~199.9, 0~1999 us/cm | 0~19.99, 0~150.0 ms/cm Conductivity Resolution 0.1 us/cm, 1 us/cm, 0.01ms/cm, 0.1 ms/cm Conductivity Accuracy ±1% of F.S ±1 digit TDS Measuring Range 0~199.9*f, 0~1999*f ppm | 0~19.99*f, 0~150.0*f ppt (f is TDS factor) TDS Resolution ±1% of F.S ±1 digit TDS Accuracy 0.1, 1 ppm, 0.01, 0.1 ppt TDS Factor 0.30~1.00 Salinity Measuring Range 0~10.00 ppt, 0~42.0 ppt (SEA Water) Salinity Resolution 0.01 ppt, 0.1 ppt Salinity Accuracy ±1% of F.S ±1 digit D.O. Measuring Range 0.0~199.9% (0.0~30.0mg/L) D.O. Resolution 0.1 D.O. Accuracy ±3% of F.S ±1 digit Temperature Measuring Range -5~60.0℃ Temperature Resolution 0.1 Temperature Accuracy ±0.5℃ Compatible Probe pH probe (863PAZ), EC probe(833PAZ), D.O. Probe (843PAZ) could be used on one meter at the same time LCD Size 54(L) * 32.5(W) mm Operating Temperature 0~50℃ Operating RH% Humidity ＜80% Storage Temperature 0~60℃ Storage RH% Humidity ＜90% Weight ~200g Battery AAA battery *4 PCS Standard Package Meter, Battery, Manual, Hard Carry Case Standard Probe pH probe, Conductivity Probe, D.O. Probe, D.O. Electrolyte, 2 membrane Set, Cable Clip (User can decide which probe to be included as standard)