Two parameter conductivity meter for measuring conductivity in water and wastewater

USM – Water Quality Meter

The USM water quality meter is a powerful and versatile meter that measures a wide range of environmental parameters. As standard, the USM will measure one of a number of ISE (Ion Selective Electrodes) plus an additional optional Modbus Electrode so the user can measure two parameters at the same time.


  • Low cost Water Quality Meter meter
  • Range of Modbus sensors from Conductivity to Turbidity
  • A range of ISE measurements from pH/Redox to Potassium
  • Quick and simple user-friendly programming
  • Optional 20-year data logger
  • PC based reporting software
  • IP 66/4X Wall mounted weatherproof enclosure
  • 3 Programmable relays
  • 4-20mA output


  • Waste Water Analysis
  • Clean Water Analysis
  • Chemical Analysis
  • Fluoridation
  • Pools and Spas
  • Aquaculture
  • Chemical Dosing control

The parameters available to be measured with our USM:

Ion Selective Electrode Choice# Optional Modbus Electrode Choice*
pH Conductivity
Redox Dissolved Oxygen
Ammonia Turbidity
Ammonium pH/ORP
Calcium TSS
Chloride Inductive Conductivity
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.

Instruction Manual


Inquisitor 12

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