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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 Cloc  picture

Thermometer Indoor Digital LCD Hygrometer Temperature Humidity Meter Alarm Cloc

$6.87



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



Digital LCD Indoor Temperature Humidity Meter Thermometer Fahrenheit Hygrometer picture

Digital LCD Indoor Temperature Humidity Meter Thermometer Fahrenheit Hygrometer

$4.99



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

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

$11.96



LCD Indoor/Outdoor Thermometer Digital Hygrometer Temperature Humidity Display picture

LCD Indoor/Outdoor Thermometer Digital Hygrometer Temperature Humidity Display

$7.79



Thermometer Indoor Digital LCD Hygrometer Temperature Humidity Meter Alarm Cloc picture

Thermometer Indoor Digital LCD Hygrometer Temperature Humidity Meter Alarm Cloc

$5.75



Weather station digital Thermometer Hygrometer Indoor Outdoor Temperature picture

Weather station digital Thermometer Hygrometer Indoor Outdoor Temperature

$16.99



Thermometer Indoor Digital LCD Hygrometer Temperature Humidity Meter Alarm Clock picture

Thermometer Indoor Digital LCD Hygrometer Temperature Humidity Meter Alarm Clock

$6.85



Mini Digital LCD Thermometer Hygrometer Humidity Temperature Meter Indoor Tester picture

Mini Digital LCD Thermometer Hygrometer Humidity Temperature Meter Indoor Tester

$7.55



ThermoPro LCD Digital Hygrometer Indoor Thermometer Temperature Humidity Monitor picture

ThermoPro LCD Digital Hygrometer Indoor Thermometer Temperature Humidity Monitor

$13.09



Digital LCD Indoor Temperature Sensor Humidity Thermometer Hygrometer Gauge USPS picture

Digital LCD Indoor Temperature Sensor Humidity Thermometer Hygrometer Gauge USPS

$2.99



Digital LCD Hygrometer Humidity Indoor Outdoor Thermometer Temperature Monitor picture

Digital LCD Hygrometer Humidity Indoor Outdoor Thermometer Temperature Monitor

$19.99



ThermoPro TP53 Digital LCD Indoor Hygrometer Thermometer Room Humidity Meter picture

ThermoPro TP53 Digital LCD Indoor Hygrometer Thermometer Room Humidity Meter

$13.99



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

Digital Thermometer Hygrometer In/Outdoor Temperature Humidity Tester with Probe

$5.95



ThermoPro TP49 Digital Hygrometer Indoor Thermometer Humidity Meter Room Ther... picture

ThermoPro TP49 Digital Hygrometer Indoor Thermometer Humidity Meter Room Ther...

$9.22



Thermometer Indoor Digital LCD Hygrometer Temperature Humidity Meter Alarm Clock picture

Thermometer Indoor Digital LCD Hygrometer Temperature Humidity Meter Alarm Clock

$5.99



iPower Digital Hygrometer Indoor Thermometer Humidity Temperature Monitor Gauge  picture

iPower Digital Hygrometer Indoor Thermometer Humidity Temperature Monitor Gauge

$8.99



LCD Indoor/Outdoor Thermometer Digital Hygrometer Temperature Humidity Display picture

LCD Indoor/Outdoor Thermometer Digital Hygrometer Temperature Humidity Display

$7.39



Mini LCD Digital Indoor Hygrometer Thermometer Rome Temperature Humidity Monitor picture

Mini LCD Digital Indoor Hygrometer Thermometer Rome Temperature Humidity Monitor

$10.19