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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

$8.99



LCD Indoor/Outdoor Thermometer Digital Hygrometer Temperature Humidity Display picture

LCD Indoor/Outdoor Thermometer Digital Hygrometer Temperature Humidity Display

$7.89



Thermometer Indoor Digital LCD Hygrometer Temperature Humidity Meter Alarm Clock picture

Thermometer Indoor Digital LCD Hygrometer Temperature Humidity Meter Alarm Clock

$5.95



ThermoPro LCD Digital Hygrometer Indoor Thermometer Temperature Humidity Monitor picture

ThermoPro LCD Digital Hygrometer Indoor Thermometer Temperature Humidity Monitor

$10.39



Digital LCD Indoor Temperature Humidity Meter Thermometer Fahrenheit Hygrometer picture

Digital LCD Indoor Temperature Humidity Meter Thermometer Fahrenheit Hygrometer

$5.49



Weather station digital Thermometer Hygrometer Indoor Outdoor Temperature picture

Weather station digital Thermometer Hygrometer Indoor Outdoor Temperature

$23.99



ThermoPro TP49 Digital Indoor Thermometer Hygrometer Temperature Humidity Meter picture

ThermoPro TP49 Digital Indoor Thermometer Hygrometer Temperature Humidity Meter

$8.99



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 Humidity Meter Room Temperature Indoor Hygrometer picture

Mini Digital LCD Thermometer Humidity Meter Room Temperature Indoor Hygrometer

$10.19



ThermoPro Digital Indoor Outdoor Thermometer Hygrometer Wireless Humidity Meter picture

ThermoPro Digital Indoor Outdoor Thermometer Hygrometer Wireless Humidity Meter

$19.99



Digital LCD Hygrometer Humidity Indoor Outdoor Thermometer Temperature Monitor picture

Digital LCD Hygrometer Humidity Indoor Outdoor Thermometer Temperature Monitor

$19.99



Digital Hygrometer Indoor Outdoor Humidity Thermometer Meter /Transmitter Sensor picture

Digital Hygrometer Indoor Outdoor Humidity Thermometer Meter /Transmitter Sensor

$12.34



ThermoPro TP53 Digital LCD Indoor Hygrometer Thermometer Room Humidity Meter picture

ThermoPro TP53 Digital LCD Indoor Hygrometer Thermometer Room Humidity Meter

$10.29



Indoor Digital Touchscreen Humidity Thermometer Temperature Hygrometer Monitor picture

Indoor Digital Touchscreen Humidity Thermometer Temperature Hygrometer Monitor

$16.99



ThermoPro TP68B 500ft Weather Station Thermometer Indoor Outdoor Hygrometer digi picture

ThermoPro TP68B 500ft Weather Station Thermometer Indoor Outdoor Hygrometer digi

$39.99



Digital LCD Indoor Temperature Sensor Humidity Thermometer Hygrometer Gauge  picture

Digital LCD Indoor Temperature Sensor Humidity Thermometer Hygrometer Gauge

$5.69



Inkbird ITH10 Thermometer/Hygrometer Humidity Monitor (set of 6) for sale picture

Inkbird ITH10 Thermometer/Hygrometer Humidity Monitor (set of 6) for sale

$12.95



Analog Indoor/Outdoor Thermometer Hygrometer Temperature Humidity - Fahrenheit picture

Analog Indoor/Outdoor Thermometer Hygrometer Temperature Humidity - Fahrenheit

$9.95



Mini LCD Digital Thermometer Hygrometer Humidity Temperature Meter Indoor Tester picture

Mini LCD Digital Thermometer Hygrometer Humidity Temperature Meter Indoor Tester

$13.98



Mini Digital LCD Thermometer Humidity Meter Room Temperature Indoor Hygrometer picture

Mini Digital LCD Thermometer Humidity Meter Room Temperature Indoor Hygrometer

$11.98