Water and Wastewater


When you purchase instruments from Teledyne ISCO, you not only receive innovative, high quality products, you also receive excellent customer service and product support. Your initial purchase is only the beginning of Teledyne ISCO's ongoing commitment to their customers.

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Software and Firmware Updates


AQ700 DatasheetDatasheet
AQ700 Multi-Parameter Sonde User ManualUser Manual


​​​​​​​​​​​​​​​​​​​​​​AQ702 Multi-Parameter Probe

Dimensions (with weighted sensor guard): Length 16 " (40.64 cm); Diameter 1.95 " (4.95 cm)
Weight (with weighted sensor guard): In air 2.6 lbs (1.18 kg); In water 1.6 lbs (0.7 kg)
Materials: PVC, 316 SST, Acetal, Polycarbonate, PTFE, Viton, Glass, Graphite, Silicone, Urethane, Platinum, Acrylic
Temperature: Operating 23 to 122 °F (-5 to 50 °C);
Storage 14 to 122 °F (-10 to 50 °C)
Power: 12VDC Supplied by connected sampler or flow meter, or USB connection to computer
Communication: SDI-12 Protocol and RS-232


Temperature: Measurement range -5 to 50 °C (23 to 122 °F); Resolution 0.01 °C (0.01 °F); Accuracy ±0.1 °C
Optical Dissolved Oxygen (DO): Compensated for temperature and salinity; Measurement range 0 to 20 mg/L; Resolution 0.01 mg/L; Linearity ±0.2 mg/L. (Alternative parameter - % Saturation)
Conductivity: Specific Conductance corrected for temperature. Measurement range 0 to 100,000 µS/cm. Resolution 0.1 µS/cm (0 - 999.9), 1 µS/cm (1000 to 9,999), 10 µS/cm (10,000 to 99,990); Linearity ±1% of reading ±1 µS/cm. Additional Parameters - Salinity, Total Dissolved Solids (TDS)
pH: Corrected for temperature. Measurement range 0 to 14 pH units. Resolution 0.01 pH units; Linearity ±0.2 pH units
Oxidation Reduction Potential (ORP): Measurement range -999 to 999 mV; Resolution 1 mV; Linearity ±20 mV
Depth: Measurement range 0 to 15 m (0 to 49 ft); Resolution 0.01 m (0.01 ft); Linearity ±0.05 m

​For a full list of product specifications, see the datasheet.



​AQ702 Multi-parameter Probe

Up to nine water quality parameters. Reliable data. Unsurpassed technology.

Depending on your monitoring requirements, the AQ702 can operate with any of the following Teledyne ISCO instruments:
  • 6712 Series Samplers
  • Avalanche® Portable Refrigerated Sampler
  • Signature® Flow Meter
  • 2105 Interface Module

Standard Features

  • Simultaneous monitoring of up to nine water quality parameters
  • AQ700 PC software for configuration and calibration
  • Real-time data displayed on your sampler or flow meter screen, or PC
  • LED Lights indicate operating status for easy diagnostics
  • Calibration record stored in an internal permanent file
  • Cables available in 3 different lengths - 5, 10, and 15 meters
  • pH Reference electrode can be rebuilt


  • Stormwater runoff
  • Aquifers
  • Aqua culture
  • Surface water
  • Watershed/TMDL