Multi parameter conductivity meter for measuring conductivity in water and wastewater

USI – Flow & Water Quality

The Universal Smart Instrument (USI) Water quality instrument is uniquely designed for multiparameter wastewater quality measurements. The instrument comes standard with an ultrasonic sensor for flow measurement and an integral pH/Redox meter.

Up to 7 water quality parameters can be measured in one device, therefore several standard instruments can be replaced by a single USI. See the features and benefits below, and for full details of the USI’s range of measurement and control refer to the product brochure.


  • Measures up 3 digital sensors and 4 ISE sensors simultaneaously.
  • Digital Turbidity, TSS, Dissolved Oxygen, Temperature and Conductivity sensors
  • Ammonia, Ammonium, Chloride, Calcium, Fluoride, Nitrate, Potassium ISE sensors.
  • Quick and simple user-friendly programming.
  • Integral 30-year data logger.
  • PC based reporting software.
  • IP 66/4X Wall mounted weatherproof enclosure.
  • 6 Programmable relays.
  • 4-20mA inputs and outputs.


  • Trade Effluent Monitoring
  • Waste Water Monitoring
  • Drinking Water Monitoring
  • Water Quality Monitoring
  • Seawater Monitoring
  • Irrigation Channels
  • Storm Water Monitoring
  • Combined Flow and Water Quality Measurement

The parameters available to be measured with our USI:

Ion Selective Electrode Choice# Optional Modbus Choice*
pH Conductivity
Redox Dissolved Oxygen
Ammonia Turbidity
Ammonium pH/ORP
Calcium Inductive Conductivity
Chloride TSS
Potassium *Note: All Modbus have integral temperature sensor measurement.
#Note: Other ISE parameters available on request.

Sensors can be either free mounted in tanks or channels or inserted into pipes using Smart Storms bespoke pipe brackets.

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Instruction Manual

Inquisitor 12


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