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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



ThermoPro Digital Hygrometer LCD Indoor Thermometer Temperature Humidity Meter picture

ThermoPro Digital Hygrometer LCD Indoor Thermometer Temperature Humidity Meter

$10.99



Thermometer Indoor Digital LCD Hygrometer Temperature Humidity Meter Alarm Cloc  picture

Thermometer Indoor Digital LCD Hygrometer Temperature Humidity Meter Alarm Cloc

$6.67



Thermometer Indoor Digital LCD Hygrometer Temperature Humidity Meter Alarm Clock picture

Thermometer Indoor Digital LCD Hygrometer Temperature Humidity Meter Alarm Clock

$6.59



Digital LCD Indoor Temperature Humidity Meter Thermometer Fahrenheit Hygrometer picture

Digital LCD Indoor Temperature Humidity Meter Thermometer Fahrenheit Hygrometer

$4.99



Thermometer Indoor Digital LCD Hygrometer Temperature Humidity Meter Alarm Clock picture

Thermometer Indoor Digital LCD Hygrometer Temperature Humidity Meter Alarm Clock

$5.75



ThermoPro Digital Indoor Outdoor Thermometer Hygrometer Wireless Humidity Meter picture

ThermoPro Digital Indoor Outdoor Thermometer Hygrometer Wireless Humidity Meter

$19.99



LCD Indoor/Outdoor Thermometer Digital Hygrometer Temperature Humidity Display picture

LCD Indoor/Outdoor Thermometer Digital Hygrometer Temperature Humidity Display

$7.89



ThermoPro Indoor Thermometer Hygrometer Digital LCD Humidity Temperature Monitor picture

ThermoPro Indoor Thermometer Hygrometer Digital LCD Humidity Temperature Monitor

$12.99



ThermoPro TP53 Digital LCD Indoor Hygrometer Thermometer Room Humidity Meter picture

ThermoPro TP53 Digital LCD Indoor Hygrometer Thermometer Room Humidity Meter

$11.99



Thermometer Indoor Digital LCD Hygrometer Temperature Humidity Meter Alarm Clock picture

Thermometer Indoor Digital LCD Hygrometer Temperature Humidity Meter Alarm Clock

$5.99



Mini Digital LCD Thermometer Humidity Meter Room Temperature Indoor Hygrometer picture

Mini Digital LCD Thermometer Humidity Meter Room Temperature Indoor Hygrometer

$11.98



Digital LCD Hygrometer Humidity Indoor Outdoor Thermometer Temperature Monitor picture

Digital LCD Hygrometer Humidity Indoor Outdoor Thermometer Temperature Monitor

$19.99



iPower 1-6Pack Indoor Digital Thermometer Hygrometer Temperature Monitor Meter picture

iPower 1-6Pack Indoor Digital Thermometer Hygrometer Temperature Monitor Meter

$8.29



LCD Indoor/Outdoor Thermometer Digital Hygrometer Temperature Humidity Display picture

LCD Indoor/Outdoor Thermometer Digital Hygrometer Temperature Humidity Display

$7.69



LCD Digital INDOOR Thermometer Hygrometer Meter Gauge Temperature Humidity NEW  picture

LCD Digital INDOOR Thermometer Hygrometer Meter Gauge Temperature Humidity NEW

$6.89



ThermoPro Digital Hygrometer LCD Indoor Thermometer Temperature Humidity Meter picture

ThermoPro Digital Hygrometer LCD Indoor Thermometer Temperature Humidity Meter

$10.99



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 Indoor/Outdoor Thermometer Hygrometer Temperature Humidity Meter picture

Digital LCD Indoor/Outdoor Thermometer Hygrometer Temperature Humidity Meter

$9.89



ThermoPro TP49 LCD Display indoor&outdoor Temperature Digital Hygrometer/Humidit picture

ThermoPro TP49 LCD Display indoor&outdoor Temperature Digital Hygrometer/Humidit

$9.49