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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

$325.99



5-20PCS Humidity Meter Mini Digital Indoor Thermometer Hygrometer Temperature US picture

5-20PCS Humidity Meter Mini Digital Indoor Thermometer Hygrometer Temperature US

$14.75



Mini Analog Thermometer Hygrometer Humidity Meter Room Indoor Temperature FAST picture

Mini Analog Thermometer Hygrometer Humidity Meter Room Indoor Temperature FAST

$3.32



Mini Lcd Digital Thermometer Hygrometer Indoor Temperature Sensor Humidity Meter picture

Mini Lcd Digital Thermometer Hygrometer Indoor Temperature Sensor Humidity Meter

$7.49



Mini ThermoPro LCD Digital Indoor Hygrometer Thermometer Humidity Monitor Meter picture

Mini ThermoPro LCD Digital Indoor Hygrometer Thermometer Humidity Monitor Meter

$9.98



Thermometer Indoor Digital LCD Hygrometer Temperature Humidity Meter Alarm Cloc  picture

Thermometer Indoor Digital LCD Hygrometer Temperature Humidity Meter Alarm Cloc

$5.95



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



THERMOMETER INDOOR Digital LCD Hygrometer Temperature Humidity Meter Alarm Clock picture

THERMOMETER INDOOR Digital LCD Hygrometer Temperature Humidity Meter Alarm Clock

$5.85



Analog Thermometer Hygrometer Mini Humidity Meter Gauge Temperature Room Indoor picture

Analog Thermometer Hygrometer Mini Humidity Meter Gauge Temperature Room Indoor

$3.55



Mini Digital LCD Thermometer Hygrometer Humidity Temperature Meter Indoor Tester picture

Mini Digital LCD Thermometer Hygrometer Humidity Temperature Meter Indoor Tester

$11.99



ThermoPro TP49BW Mini  LCD Digital Indoor Hygrometer Humidity Room Thermometer picture

ThermoPro TP49BW Mini LCD Digital Indoor Hygrometer Humidity Room Thermometer

$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

$49.99



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

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

$5.80



Digital Humidity Meter For Indoor Hygrometer Thermometer Temperature LCD picture

Digital Humidity Meter For Indoor Hygrometer Thermometer Temperature LCD

$5.74



2Pcs Wall Thermometer Indoor Outdoor Mount Garden Greenhouse Home Humidity Meter picture

2Pcs Wall Thermometer Indoor Outdoor Mount Garden Greenhouse Home Humidity Meter

$12.48



ThermoPro TP49 3-Pack Digital Hygrometer Indoor Thermometer Humidity Meter picture

ThermoPro TP49 3-Pack Digital Hygrometer Indoor Thermometer Humidity Meter

$46.11



LCD Digital Thermometer Hygrometer Aquarium Humidity Meter Gauge Fahrenheit picture

LCD Digital Thermometer Hygrometer Aquarium Humidity Meter Gauge Fahrenheit

$6.49



Mini Digital Indoor LCD Thermometer Hygrometer Gauge Humidity Temperature picture

Mini Digital Indoor LCD Thermometer Hygrometer Gauge Humidity Temperature

$1.63



ACEHE Mini LCD Digital Thermometer Hygrometer Humidity Temperature Meter Indoor picture

ACEHE Mini LCD Digital Thermometer Hygrometer Humidity Temperature Meter Indoor

$10.49



Mini Digital LCD Temperature Indoor Humidity Meter Thermometer Hygrometer Round picture

Mini Digital LCD Temperature Indoor Humidity Meter Thermometer Hygrometer Round

$9.27