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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)

LCD Digital Thermometer Hygrometer Aquarium Humidity Meter Gauge Fahrenheit US picture

LCD Digital Thermometer Hygrometer Aquarium Humidity Meter Gauge Fahrenheit US

$195.86



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

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

$136.99



Mini Hygrometer Thermometer LCD Digital Indoor Humidity Gauge Monitor Fahrenheit picture

Mini Hygrometer Thermometer LCD Digital Indoor Humidity Gauge Monitor Fahrenheit

$129.98



ThermoPro mini  LCD Digital Indoor Hygrometer Thermometer Humidity Monitor Meter picture

ThermoPro mini LCD Digital Indoor Hygrometer Thermometer Humidity Monitor Meter

$9.99



Thermometer Indoor Digital LCD Hygrometer Temperature Humidity Meter Alarm Clock picture

Thermometer Indoor Digital LCD Hygrometer Temperature Humidity Meter Alarm Clock

$5.85



THERMOMETER INDOOR Digital LCD Hygrometer Temperature Humidity Meter Alarm Clock picture

THERMOMETER INDOOR Digital LCD Hygrometer Temperature Humidity Meter Alarm Clock

$6.50



Thermometer Indoor Digital LCD Hygrometer Temperature Humidity Meter Alarm Clock picture

Thermometer Indoor Digital LCD Hygrometer Temperature Humidity Meter Alarm Clock

$5.99



THERMOMETER INDOOR Digital LCD Hygrometer Temperature Humidity Meter Alarm Clock picture

THERMOMETER INDOOR Digital LCD Hygrometer Temperature Humidity Meter Alarm Clock

$5.95



Mini LCD Digital Thermometer Hygrometer Humidity Temperature Meter Indoor Tester picture

Mini LCD Digital Thermometer Hygrometer Humidity Temperature Meter Indoor Tester

$6.98



Digital Analog Hygrometer Cigar Humidor Thermometer Temp Humidity Meter FH1539G picture

Digital Analog Hygrometer Cigar Humidor Thermometer Temp Humidity Meter FH1539G

$12.49



Analog Hygrometer Humidity Gauge 1.75 in. Dia Metal Chrome Bezel Made in Germany picture

Analog Hygrometer Humidity Gauge 1.75 in. Dia Metal Chrome Bezel Made in Germany

$9.50



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

Digital Thermometer Hygrometer In/Outdoor Temperature Humidity Tester with Probe

$6.45



5x Digital Temperature Mini Humidity Meter Gauge Thermometer Hygrometer Degree picture

5x Digital Temperature Mini Humidity Meter Gauge Thermometer Hygrometer Degree

$9.59



Mini LCD Digital Indoor Hygrometer Thermometer Humidity Gauge Monitor Meter picture

Mini LCD Digital Indoor Hygrometer Thermometer Humidity Gauge Monitor Meter

$7.45



Mini Hygrometer Thermometer Digital Humidity Temperature Gauge Monitor Indoor picture

Mini Hygrometer Thermometer Digital Humidity Temperature Gauge Monitor Indoor

$41.93



Mini Digital LCD Thermometer Hygrometer Humidity Temperature Meter Indoor Tester picture

Mini Digital LCD Thermometer Hygrometer Humidity Temperature Meter Indoor Tester

$41.86



Digital LCD Indoor Temperature Humidity Meter Thermometer Fahrenheit Hygrometer picture

Digital LCD Indoor Temperature Humidity Meter Thermometer Fahrenheit Hygrometer

$5.49



Digital Hygrometer Indoor Outdoor Humidity Thermometer Meter /Transmitter Sensor picture

Digital Hygrometer Indoor Outdoor Humidity Thermometer Meter /Transmitter Sensor

$12.34



Digital LCD Indoor Thermometer Hygrometer Room Humidity Meter Magnetic Backlit picture

Digital LCD Indoor Thermometer Hygrometer Room Humidity Meter Magnetic Backlit

$10.95



Indoor Digital Touchscreen Humidity Thermometer Temperature Hygrometer Monitor picture

Indoor Digital Touchscreen Humidity Thermometer Temperature Hygrometer Monitor

$16.99