pH Meters & Water Quality Testers

  1. Extech EC510 Waterproof ExStik II pH/Conductivity Meter Kit
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    Extech EC510 Waterproof ExStik II pH/Conductivity Meter Kit
    (no reviews)
    £213.60 £178.00
    • RENEW feature which alerts users to replace electrode
    • Nine units of measurement
    • 25 labelled readings memory
    178 Reward Points
    Price Match Guarantee
    EC510
  2. Extech EX900 ExStik 4-in-1 Chlorine pH, ORP & Temperature Kit
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    Only 1 In Stock
    Extech EX900 ExStik 4-in-1 Chlorine pH, ORP & Temperature Kit
    (1)
    £214.80 £179.00
    • Comes with CL200 meter, electrodes and more
    • Four-in-one water quality meter
    • Flat surface electrodes for testing in liquids, semi-solids and solids
    179 Reward Points
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    EX900
  3. Extech PH300 Waterproof pH/mV/Temperature Kit
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    Extech PH300 Waterproof pH/mV/Temperature Kit
    (1)
    £244.80 £204.00
    • Automatic temperature compensation included
    • Measures pH, mV and temperature
    • Waterproof casing
    204 Reward Points
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    PH300
  4. Extech DO600 Waterproof  ExStik II Dissolved Oxygen Meter
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    Only 1 In Stock
    Extech DO600 Waterproof ExStik II Dissolved Oxygen Meter
    (no reviews)
    £287.40 £239.50
    • Displays oxygen levels as both saturation and concentration
    • Analogue bar graph and digital display
    • Self-calibrating
    239 Reward Points
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    DO600

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About pH Meters & Water Quality Testers

Perfect for use both in educational, industrial, and scientific environments, a pH/water quality tester is the ideal solution for accurately measuring the pH of substances or ensuring that water is safe for consumption.

Of course, pH testers aren't just for use in substances - many devices are also used to test the pH of food, or for evaluating the levels of acid/alkali inside semi-solid or solid materials. Soil pH meters are also commonly used in food production to ensure that soils are at the right levels for increasing maximum yield when growing crops, plants, or vegetation.

If you're regularly testing for different PHs, having an accurate, easy-to-read tester ensures that you can always maintain accurate readings of potentially dangerous substances. A PH tester is also ideal for use in schools, providing a more accurate alternative to using litmus paper in the science lab.

Most common pH meters work by the use of an electrode. When inserted into the target substance this electrode will create a current through that substance; the pH meter will then read this current, and display the overall acidity/alkalinity of the substance on the tester's screen. Proper maintenance of a pH electrode is essential in between testing procedures - they should be cleaned carefully, and kept stored in a regularly changed solution of a specific pH to maintain the efficiency of the pH electrode. Without proper care, the electrode will deteriorate much faster and will have to be replaced much more regularly.

It's also quite common for pH meters to be able to evaluate the overall temperature of the object/solution being tested at the same time as pH readings are being calculated. This is particularly useful when testing foodstuffs such as meat; these meat pH meters and other food meters can be used to accurately determine the pH of stored/cooked food, and are ideal for use everywhere from restaurants to supermarket refrigeration storage areas.

Got a swimming pool or a hot tub at home? pH meters are great tools for evaluating the delicate chemical balance used in these devices, and allow users to easily maintain and adjust the chemical balance as and when needed.

Generally, PH meters range in size, shape, and ability. For those on a budget, pen-sized PH meters are available, while we also stock a range of higher-priced PH meters which are more suited for technical environments such as laboratories. More expensive devices generally come with additional features such as temperature compensators; readings can be affected by temperature.

Water quality testers check to see if water is safe for consumption or human touch. These are essential for those who work regularly with both water and chemicals, allowing you, for example, to check that the correct levels of chlorine are present in water before it is sent out for use in homes and other areas.

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