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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

$6.67



Mini ThermoPro LCD Digital Indoor Hygrometer Thermometer Humidity Monitor Meter picture

Mini ThermoPro LCD Digital Indoor Hygrometer Thermometer Humidity Monitor Meter

$9.29



ThermoPro Digital Indoor Outdoor Thermometer Hygrometer Wireless Humidity Meter picture

ThermoPro Digital Indoor Outdoor Thermometer Hygrometer Wireless Humidity Meter

$19.99



Wireless Weather Station Clock, Outdoor Indoor Thermometer Hygrometer picture

Wireless Weather Station Clock, Outdoor Indoor Thermometer Hygrometer

$22.00



Digital LCD Indoor Temperature Humidity Meter Thermometer Fahrenheit Hygrometer picture

Digital LCD Indoor Temperature Humidity Meter Thermometer Fahrenheit Hygrometer

$4.99



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

$6.98



Thermometer Digital LCD Hygrometer Humidity Meter Room Indoor Temperature Clock picture

Thermometer Digital LCD Hygrometer Humidity Meter Room Indoor Temperature Clock

$7.29



Thermometer Indoor Digital LCD Hygrometer Temperature Humidity Meter Alarm Clock picture

Thermometer Indoor Digital LCD Hygrometer Temperature Humidity Meter Alarm Clock

$5.99



Weather station digital Thermometer Hygrometer Indoor Outdoor Temperature picture

Weather station digital Thermometer Hygrometer Indoor Outdoor Temperature

$16.99



iPower Indoor Digital Thermometer Hygrometer Temperature Humidity Monitor Meter picture

iPower Indoor Digital Thermometer Hygrometer Temperature Humidity Monitor Meter

$8.99



LCD Indoor/Outdoor Thermometer Digital Hygrometer Temperature Humidity Display picture

LCD Indoor/Outdoor Thermometer Digital Hygrometer Temperature Humidity Display

$7.69



ThermoPro LCD Digital Hygrometer Indoor Thermometer Temperature Humidity Monitor picture

ThermoPro LCD Digital Hygrometer Indoor Thermometer Temperature Humidity Monitor

$11.99



Mini Digital LCD Thermometer Hygrometer Humidity Temperature Meter Indoor Tester picture

Mini Digital LCD Thermometer Hygrometer Humidity Temperature Meter Indoor Tester

$7.49



Mini LCD Digital Thermometer Hygrometer Humidity Monitor Meter Indoor / Outdoor picture

Mini LCD Digital Thermometer Hygrometer Humidity Monitor Meter Indoor / Outdoor

$9.49



LCD Digital INDOOR Thermometer Hygrometer Meter Gauge Temperature Humidity NEW  picture

LCD Digital INDOOR Thermometer Hygrometer Meter Gauge Temperature Humidity NEW

$6.69



ThermoPro mini LCD Digital Indoor Hygrometer Thermometer Humidity Monitor Meter picture

ThermoPro mini LCD Digital Indoor Hygrometer Thermometer Humidity Monitor Meter

$9.99



Mini Thermometer Hygrometer Humidity Temperature Meter Indoor Tester picture

Mini Thermometer Hygrometer Humidity Temperature Meter Indoor Tester

$7.99



2pcs ThermoPro TP49B Thermometer Hygrometer  Digital Temperature Humidity Meter picture

2pcs ThermoPro TP49B Thermometer Hygrometer Digital Temperature Humidity Meter

$15.99



Wireless Digital Hygrometer LCD Indoor Thermometer Temperature Humidity Meter picture

Wireless Digital Hygrometer LCD Indoor Thermometer Temperature Humidity Meter

$12.29