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    Hydroponic Hygrometer

    Hydroponic System DiagramTo ensure that your plants are being fed the proper nutrients and nutrient concentrations, it is important to monitor your nutrient solution.

    On a daily basis you should test the nutrient solution and record the results

    • EC (Nutrient concentrations)
    • PH (acidity / alkalinity...see Lesson 4 for more information on PH)
    • Temperature of nutrient solution
    • Daytime room temperature
    • Nighttime room temperature

    It is also important to record when you replace your nutrient solution so you can easily determine when it should again be replaced.

    In addition to these tests, you may also want to record the stage of plant growth, the size of your plants and any problems or significant changes.

    Recording this information gives you an accurate accounting of what is happening with your plants. This data is an excellent tool for diagnosing problems, should they arise.

    Advanced Nutrient Testing
    Neither an EC or TDS meter can indicate precisely what nutrients make up the fertilizer solution. More complete test kits are available for this purpose. Many commercial growers test their nutrient solutions on a regular basis to ensure they are feeding exactly the mix that is intended. Regular leaf analysis is an excellent tool for determining the health of your plants. Leaf tissue samples are dried, crushed and analyzed to determine the exact nutrient content.

    Most of the more complex kits will test nitrogen, potassium, phosphorous and sulfur. Commercial labs offer more precise results. In the event of a combination of nutrient deficiencies, the symptoms of one problem may mask the symptoms of another. A leaf tissue analysis may be the only way to determine what is wrong with your plants.

    Listed below are some testing devices to get started with.


    (Hygrometer)

    ThermoPro mini  LCD Digital Indoor Hygrometer Thermometer Humidity Monitor Meter picture

    ThermoPro mini LCD Digital Indoor Hygrometer Thermometer Humidity Monitor Meter

    $9.99



    5/10/100x Mini Digital Indoor Thermometer Hygrometer Temperature Humidity Meter picture

    5/10/100x Mini Digital Indoor Thermometer Hygrometer Temperature Humidity Meter

    $11.96



    Digital Thermometer Humidity Meter Gauge Room Temperature Indoor LCD Hygrometer picture

    Digital Thermometer Humidity Meter Gauge Room Temperature Indoor LCD Hygrometer

    $1.99



    Thermometer Indoor Digital LCD Hygrometer Temperature Humidity Meter Alarm Cloc  picture

    Thermometer Indoor Digital LCD Hygrometer Temperature Humidity Meter Alarm Cloc

    $6.74



    ThermoPro Digital Hygrometer LCD Indoor Thermometer Temperature Humidity Meter picture

    ThermoPro Digital Hygrometer LCD Indoor Thermometer Temperature Humidity Meter

    $10.99



    Digital LCD Hygrometer Humidity Indoor Outdoor Thermometer Temperature Monitor picture

    Digital LCD Hygrometer Humidity Indoor Outdoor Thermometer Temperature Monitor

    $19.99



    Thermometer Indoor Digital LCD Hygrometer Temperature Humidity Meter Alarm Clock picture

    Thermometer Indoor Digital LCD Hygrometer Temperature Humidity Meter Alarm Clock

    $6.73



    Weather station digital Thermometer Hygrometer Indoor Outdoor Temperature picture

    Weather station digital Thermometer Hygrometer Indoor Outdoor Temperature

    $16.99



    Digital LCD Hygrometer Indoor Thermometer Temperature Humidity Meter Alarm Clock picture

    Digital LCD Hygrometer Indoor Thermometer Temperature Humidity Meter Alarm Clock

    $5.99



    LCD Indoor/Outdoor Thermometer Digital Hygrometer Temperature Humidity Display picture

    LCD Indoor/Outdoor Thermometer Digital Hygrometer Temperature Humidity Display

    $7.89



    Mini Digital LCD Thermometer Hygrometer Humidity Temperature Meter Indoor Tester picture

    Mini Digital LCD Thermometer Hygrometer Humidity Temperature Meter Indoor Tester

    $7.49



    Weather station digital Thermometer Hygrometer Indoor Outdoor Temperature USA picture

    Weather station digital Thermometer Hygrometer Indoor Outdoor Temperature USA

    $10.99



    Thermometer Indoor Digital LCD Hygrometer Temperature Humidity Meter Alarm Cloc picture

    Thermometer Indoor Digital LCD Hygrometer Temperature Humidity Meter Alarm Cloc

    $5.75



    ThermoPro TP53 Digital LCD Indoor Hygrometer Thermometer Room Humidity Meter picture

    ThermoPro TP53 Digital LCD Indoor Hygrometer Thermometer Room Humidity Meter

    $13.99



    5PCS Digital LCD Indoor Temperature Humidity Meter Thermometer Hygrometer US picture

    5PCS Digital LCD Indoor Temperature Humidity Meter Thermometer Hygrometer US

    $9.95



    Thermometer Indoor Digital LCD Hygrometer Temperature Humidity Meter Alarm Clock picture

    Thermometer Indoor Digital LCD Hygrometer Temperature Humidity Meter Alarm Clock

    $5.99



    Digital LCD Thermometer Hygrometer Humidity Meter Room Indoor Temperature Clock picture

    Digital LCD Thermometer Hygrometer Humidity Meter Room Indoor Temperature Clock

    $7.59



    Thermometer Indoor Digital LCD Hygrometer Temperature Humidity Meter Alarm Clock picture

    Thermometer Indoor Digital LCD Hygrometer Temperature Humidity Meter Alarm Clock

    $5.46



    US 5 PCS Digital LCD Indoor Temperature Humidity Meter Thermometer Hygrometer picture

    US 5 PCS Digital LCD Indoor Temperature Humidity Meter Thermometer Hygrometer

    $9.95



    ThermoPro LCD Digital Hygrometer Indoor Thermometer Temperature Humidity Monitor picture

    ThermoPro LCD Digital Hygrometer Indoor Thermometer Temperature Humidity Monitor

    $13.09