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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)

THERMOMETER INDOOR Digital LCD Hygrometer Temperature Humidity Meter Alarm Clock picture

THERMOMETER INDOOR Digital LCD Hygrometer Temperature Humidity Meter Alarm Clock

$5.89



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

$5.75



ThermoPro Digital Indoor Outdoor Thermometer Hygrometer Wireless Humidity Meter picture

ThermoPro Digital Indoor Outdoor Thermometer Hygrometer Wireless Humidity Meter

$19.99



Digital LCD Indoor Temperature Humidity Meter Thermometer Fahrenheit Hygrometer picture

Digital LCD Indoor Temperature Humidity Meter Thermometer Fahrenheit Hygrometer

$5.49



Digital Hygrometer Indoor Mini Thermometer Humidity Meter Room with Temperature  picture

Digital Hygrometer Indoor Mini Thermometer Humidity Meter Room with Temperature

$3.99



ThermoPro mini LCD Digital Indoor Hygrometer Thermometer Humidity Monitor Meter picture

ThermoPro mini LCD Digital Indoor Hygrometer Thermometer Humidity Monitor Meter

$8.99



LCD Indoor/Outdoor Thermometer Digital Hygrometer Temperature Humidity Display picture

LCD Indoor/Outdoor Thermometer Digital Hygrometer Temperature Humidity Display

$7.89



Digital LCD Indoor Temperature Sensor Humidity Thermometer Hygrometer Gauge  picture

Digital LCD Indoor Temperature Sensor Humidity Thermometer Hygrometer Gauge

$4.99



LCD Digital Thermometer Hygrometer Aquarium Humidity Meter Gauge Fahrenheit picture

LCD Digital Thermometer Hygrometer Aquarium Humidity Meter Gauge Fahrenheit

$6.79



Thermometer Indoor Digital LCD Hygrometer Temperature Humidity Meter Alarm Clock picture

Thermometer Indoor Digital LCD Hygrometer Temperature Humidity Meter Alarm Clock

$5.99



Digital Thermometer Hygrometer In/Outdoor Temperature Humidity Tester with Probe picture

Digital Thermometer Hygrometer In/Outdoor Temperature Humidity Tester with Probe

$6.25



Thermometer Indoor Digital LCD Hygrometer Temperature Humidity Meter Alarm Clock picture

Thermometer Indoor Digital LCD Hygrometer Temperature Humidity Meter Alarm Clock

$5.70



Thermometer Indoor Digital LCD Hygrometer Temperature Humidity Meter Alarm Cloc  picture

Thermometer Indoor Digital LCD Hygrometer Temperature Humidity Meter Alarm Cloc

$6.67



ThermoPro mini  LCD Digital Indoor Hygrometer Thermometer Humidity Monitor Meter picture

ThermoPro mini LCD Digital Indoor Hygrometer Thermometer Humidity Monitor Meter

$8.99



Indoor Digital Thermometer Temperature Humidity Meter Hygrometer with LCD Clock picture

Indoor Digital Thermometer Temperature Humidity Meter Hygrometer with LCD Clock

$6.99



Thermometer Indoor Digital LCD Hygrometer Temperature Humidity Meter Alarm Cloc  picture

Thermometer Indoor Digital LCD Hygrometer Temperature Humidity Meter Alarm Cloc

$5.69



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

5 PCS Digital LCD Indoor Temperature Humidity Meter Thermometer Hygrometer US

$12.98



Digital LCD Indoor/Outdoor Thermometer Hygrometer Temperature Humidity Meter picture

Digital LCD Indoor/Outdoor Thermometer Hygrometer Temperature Humidity Meter

$9.89



Thermometer Indoor Digital LCD Hygrometer Temperature Humidity Meter Alarm Cloc  picture

Thermometer Indoor Digital LCD Hygrometer Temperature Humidity Meter Alarm Cloc

$5.69