pH Meters & Water Quality Testers

  1. Extech DO600-K Waterproof  ExStik II Dissolved Oxygen Meter Kit
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    Free UK Delivery
    Extech DO600-K Waterproof ExStik II Dissolved Oxygen Meter Kit
    (no reviews)
    £430.80 £359.00
    • Multiple variations of dissolved oxygen measurements
    • Large digital display with analogue bar graph
    • Plenty of extras!
    359 Reward Points
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    DO600-K
  2. Extech SDL150 Dissolved Oxygen Meter/Datalogger
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    Free UK Delivery
    Extech SDL150 Dissolved Oxygen Meter/Datalogger
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    £442.80 £369.00
    • Dual backlit display
    • Supplied SD card
    • Dissolved oxygen testing from 0 to 20mg/L
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    SDL150
  3. Extech EC600 Waterproof Conductivity Kit
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    Only 1 In Stock
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    Extech EC600 Waterproof Conductivity Kit
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    £444.00 £370.00
    • Takes six different measurements
    • Microprocessor calibrates automatically
    • Stores up to 300 measurements
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    EC600
  4. Extech 407510 Heavy Duty Dissolved Oxygen Meter
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    Lead Time: 1-2 Weeks
    Free UK Delivery
    Extech 407510 Heavy Duty Dissolved Oxygen Meter
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    £462.00 £385.00
    • Measure dissolved oxygen with ease
    • Measures temperatures
    • RS-232 interface allows you to interact with test data on PC
    385 Reward Points
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    407510

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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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