Skip to content

omni instruments | sensors and data acquisition equipment

Omni Instruments Ltd

Sales & Technical Support

  • +44 (0) 1382 443000
  • info@omni.uk.com
Omni Instruments Ltd
  • Home
  • Custom Systems
  • Our Brands
  • System Hires
  • About
  • Contact
  • Home
  • Custom Systems
  • Our Brands
  • System Hires
  • About
  • Contact
Products
  • Data Loggers
  • Displacement
  • Display & Control
  • Flow Meters
  • Gas Detection
  • Gyros & Accelerometers
  • Level & Distance
  • Load Cells
  • Pressure Sensors
  • Radio & GSM Telemetry
  • Remote Monitoring
  • Serial Ethernet & ModBus
  • Solar & Wind Power
  • Subsea & Offshore
  • Temperature and Humidity
  • Test & Calibration
  • Torque Transducers
  • Vibration Monitoring
  • Voltage & Current
  • Water Quality
  • Weather Instruments
  • Accessories
  • Data Loggers
  • Displacement
  • Display & Control
  • Flow Meters
  • Gas Detection
  • Gyros & Accelerometers
  • Level & Distance
  • Load Cells
  • Pressure Sensors
  • Radio & GSM Telemetry
  • Remote Monitoring
  • Serial Ethernet & ModBus
  • Solar & Wind Power
  • Subsea & Offshore
  • Temperature and Humidity
  • Test & Calibration
  • Torque Transducers
  • Vibration Monitoring
  • Voltage & Current
  • Water Quality
  • Weather Instruments
  • Accessories
  • Home
  • Custom Systems
  • Our Brands
  • System Hires
  • About
  • Contact
  • Home
  • Custom Systems
  • Our Brands
  • System Hires
  • About
  • Contact
Need Help?
£0.00 0 Basket
Product
  • Data Loggers
  • Displacement
  • Display & Control
  • Flow Meters
  • Gas Detection
  • Gyros & Accelerometers
  • Level & Distance
  • Load Cells
  • Pressure Sensors
  • Radio & GSM Telemetry
  • Remote Monitoring
  • Serial Ethernet & ModBus
  • Solar & Wind Power
  • Subsea & Offshore
  • Temperature and Humidity
  • Test & Calibration
  • Torque Transducers
  • Vibration Monitoring
  • Voltage & Current
  • Water Quality
  • Weather Instruments
  • Accessories
  • Data Loggers
  • Displacement
  • Display & Control
  • Flow Meters
  • Gas Detection
  • Gyros & Accelerometers
  • Level & Distance
  • Load Cells
  • Pressure Sensors
  • Radio & GSM Telemetry
  • Remote Monitoring
  • Serial Ethernet & ModBus
  • Solar & Wind Power
  • Subsea & Offshore
  • Temperature and Humidity
  • Test & Calibration
  • Torque Transducers
  • Vibration Monitoring
  • Voltage & Current
  • Water Quality
  • Weather Instruments
  • Accessories
£0.00 0 Basket

Aquaread

Home / Our Brands / NKE Group / Aquaread / Ion Selective Electrodes

Ion Selective Electrodes

Aquaread’s range of user-replaceable Ion Selective Electrodes (ISE) are specialised, solid-state sensors designed to measure specific dissolved ion concentrations directly in the field. These compact probes plug directly into the auxiliary sockets of the AP-2000, AP-5000, and AP-7000 multi-parameter Aquaprobes. By converting chemical activity into a readable electrical potential, they allow operators to gather real-time laboratory-grade chemical data without the need for manual grab sampling or post-processing delays.

What distinguishes the Aquaread ISE range from traditional laboratory glass electrodes is their highly rugged, field-hardened design. They utilise durable solid-state sensor tips instead of fragile glass membranes, allowing them to withstand the high pressures and abrasive environments encountered in deep boreholes and flowing rivers. Additionally, they are calibrated and managed seamlessly through the host Aquaprobe’s existing software interface.

Key Features

  • Plug-and-Play Integration: Standardised auxiliary connections allow quick physical installation and automatic detection by any compatible Aquaread Aquaprobe.
  • Targeted Chemical Profiling: Available in five dedicated ion-specific variations: Ammonium (NH4), Nitrate (NO3), Chloride (Cl-), Fluoride (F-), and Calcium (Ca2+}.
  • Rugged Solid-State Construction: Engineered with robust, solid-state sensing elements that resist pressure and mechanical wear far better than delicate laboratory glass equivalents.
  • Streamlined Calibration: Calibrated using simple two-point standard solutions directly through the Aquaread handheld GPS meter or PC software.
  • Reduced Operating Costs: Eliminates the logistical overhead, transport time, and laboratory analysis fees associated with collecting and preserving traditional water grab samples.

Note: Ion Selective Electrodes (ISE) are highly sensitive to temperature and pH variations, which can skew readings. For maximum accuracy, ensure your host Aquaprobe’s temperature and pH sensors are fully calibrated, as the system relies on them to automatically calculate temperature-compensated ion concentrations in real time.

Section below will have images added soon.

Ammonium & Ammonia

Ammonium & Ammonia

Explore Range
Chloride

Chloride

Explore Range
Nitrate

Nitrate

Explore Range
Fluoride

Fluoride

Explore Range
Calcium

Calcium

Explore Range

CONTACT US

8:30am to 5pm Monday to Thursday
8:30am to 3pm on Friday.

  • +44 (0) 1382 443000
  • info@omni.uk.com

A real person will answer the phone and deal with your enquiry.
You can also click the button below and fill in our online enquiry form.

Technical Sales

links

  • About
  • Contact
  • Custom Systems
  • Privacy & Cookies
  • Terms & Conditions

omni instruments

Omni Instruments Ltd,
Unit 1, 14 Nobel Road,
Wester Gourdie Industrial Estate,
Dundee, DD2 4UH, UK

Sales & Support

  • +44 (0) 1382 443000
  • info@omni.uk.com

Payments

mastercard-color
visa-color
amex-color
Copyright Omni Instruments 2026 | Design. Build. Host.

        We are here to help

        Need help with your products or have a question for us on our custom systems? Use the form below to send us a message and our experts will be in touch to help.

        Call us on +44 (0)1382 443000