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Controllers and Monitoring

Controlling and monitoring systems from Sterner allow you complete control of your water quality from anywhere in the world—even during transport.
  • OxyGuard Handy Polaris

    Oxyguard Handy Polaris 1 Dissolved Oxygen Meter

    OxyGuard
    from £870.99

    The OxyGuard Handy Polaris is a portable D.O. meter that also measures % saturation, mg/L (ppm), temperature and has salinity compensation. Measure...

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    from £870.99
  • OX-H10M

    OxyGuard Handy Membranes 10pk

    OxyGuard
    £8.99

    Membrane Kit with O-Rings Membrane Kit with O-Rings

    £8.99
  • D10E11L

    OxyGuard Type 1 Electrolyte (1litre)

    OxyGuard
    £32.99

    Standard electrolyte for OxyGuard Handy Probes

    £32.99
  • OxyGuard Handy Polaris 2 Dissolved Oxygen Meter

    OxyGuard
    from £942.99

    The OxyGuard Handy Polaris 2 is a portable dissolved oxygen (D.O.) meter that combines the features of the original Polaris with the convenience of...

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    from £942.99
  • OxyGuard Type 3 Electrolyte (1litre)

    OxyGuard
    £32.99

    Standard electrolyte for Type 3 OxyGuard Probes Standard electrolyte for Type 3 OxyGuard Probes

    £32.99
  • D10MSV

    OxyGuard %sat Membranes 10pk

    OxyGuard
    £8.99

    10pk Membranes for OxyGuard Type 3 Probes measuring % Saturation 10pk Membranes for OxyGuard Type 3 Probes measuring % Saturation

    £8.99
  • Galvanic DO Sensor

    YSI Pro20 Galvanic DO Sensor

    YSI
    £214.99

    The 60520 is a 1-port cable for use with the Professional Plus or Pro20 instrument. The port requires a DO probe. Galvanic DO Sensor for YSI Pro 20...

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    £214.99
  • Oxyguard pH Probe

    OxyGuard
    from £464.99

    These OxyGuard probes consist of an electrode and an impedance converter inside a twopart housing held together by a threaded collar. There is extr...

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    from £464.99
  • Oxyguard Handy pH Electrode

    OxyGuard
    £153.99

    Replacement electrode for Oxyguard Handy pH Meter.

    £153.99
  • D10MM

    OxyGuard ppm Membranes 10pk

    OxyGuard
    £8.99

    10pk membranes for OxyGuard Type 3 Probes used for measuring ppm 10pk membranes for OxyGuard Type 3 Probes used for measuring ppm

    £8.99
  • YSI Pro Series Soft Sided Small Carrying Case

    YSI
    £102.00

    Case dimensions measure 12x12x3 (inches). The case includes a hand strap and an over-the-shoulder carrying strap. Internal pockets include one for ...

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    £102.00
  • Sale

    YSI Pro Plus Quatro Field Cable

    YSI
    from £849.99

    The Quatro is a 4-port cable for use with the Professional Plus instrument. The Quatro is a true field cable with MS (military spec) connectors, tw...

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    from £849.99
    Sale
  • YSI Cable Management Kit

    YSI
    £19.20

    Easily manage your longer cables. Automatically included with Pro Series cables 4-meters and longer. Also attaches to the back of the instrument to...

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    £19.20
  • YSI Replacement ODO Sensor Cap Kit

    YSI
    £156.00

    Includes screw-on sensor cap and calibration code sequence. Average life is 1 year or greater. Response Time (T95 - from 0 to 100%) = 40 seconds Fl...

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    £156.00
  • YSI Conductivity Calibrator Solution 50,000 uS/cm

    YSI
    £22.96

    To ensure quality, YSI inspects conductivity solutions with reference to primary standard solutions according to OIML recommendation 56. Bottles in...

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    £22.96
  • YSI ProDIGITAL ODO Cable Assembly

    YSI
    from £871.20

    The ODO has all the advantages of optical dissolved oxygen technology – higher accuracy, less maintenance, no stirring required for accurate measur...

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    from £871.20
  • YSI Replacement ProDSS ODO/CT ODO Sensor Cap

    YSI
    £193.20

    Replacement ProDSS ODO/CT ODO extended warranty sensor cap featuring a 2 year warranty.  This item comes preinstalled on ODO/CT assemblies.

    £193.20
  • YSI Pro Series Probe Guard

    YSI
    £201.60

    Replacement probe guard for YSI Pro series instruments.

    £201.60
  • YSI Cap Membrane Kit 1.25 Mil PE

    YSI
    £85.20

    Includes bottle of electrolyte, 1 sanding disc and 6 screw-on cap membranes. 1.25 Mil PE membranes. Yellow cap. Response Time (T95 - from 0 to 100%...

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    £85.20
  • OxyGuard Temperature Probe

    OxyGuard
    from £157.99

    OxyGuard temperature probes are robust, accurate and easy to use. They are filled with a special compound that protects against moisture. As standa...

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    from £157.99
  • YSI Pro Solo

    YSI ProSolo Optical Dissolved Oxygen and Conductivity Meter

    YSI
    from £2,224.99

    An evolution of the Professional Series water quality meters, the ProSolo DIGITAL handheld replaces the ProODO as YSI’s most advanced optical disso...

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    from £2,224.99
  • OxyGuard TGP Probe

    OxyGuard
    £809.99

    The OxyGuard TGP probe measures Total dissolved Gas Pressure and is designedspecifically for use with OxyGuard Commander or Pacific systems. It...

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    £809.99
  • OX-G02C2

    OxyGuard Stationary CO2 Analyzer

    OxyGuard
    from £692.99

    The OxyGuard CO2 is a reliable and easy to use instrument that measures the free dissolved carbon dioxide concentration directly in the water. The ...

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    from £692.99
  • OxyGuard Salinity Probe

    OxyGuard
    £744.99

    The OxyGuard Salinity Probe is specially designed for aquaculture use. Factory calibration and automatic temperature compensation make it very eas...

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    £744.99