Measuring Equipment (25)

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Maintaining an optimal environment is the most important factor in getting impressive results - There are many variables that should be monitored and maintained within optimal levels, and the safe limits can fluctuate throughout a plant's life cycle as young plants have very different requirements to flowering plants. The most important measurements to keep track of in any set-up is the ambient air temperature and in hydroponic systems you must also keep track of the pH and electrical conductivity (E.C.) which is a measure of dissolved food in a nutrient solution.

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Buyer's Guide

Measuring Tools and Equipment

Take the guess work out of your measurements. From measuring quantities of raw nutrient for dosing to keeping an eye on the pH and EC of your nutrient solution; if you need to take an accurate reading of any measurement, you’ll find something here to help you in your hydroponic venture.


Large swings in any environmental factors can have detrimental effects on plant health so it’s really important to measure the variables so you can take action if things are going wrong and to catch issues as early as possible. If humidity is too low early in the plant's life, it can transpire faster than the fluids are replenished which could lead to the growing tips going crispy which could kill a young plant. If High humidity is maintained into the end of a plant's life it can cause problems with mould which will decrease your yield. For this reason, we recommend starting at a humidity of 70% in early propagation, between 50-60% during vegetative growth transitioning to around 40-50% humidity in late flower.


The temperature the plants are subjected to can also affect their growth with low temperatures slowing new growth as the plant's metabolic processes such as photosynthesis and respiration decrease. If temperatures keep dropping plants could die. High temperatures can cause plants to stretch as they attempt to deal with the heat, as well as reducing the density of your fruit if high temperatures are consistent throughout flower.


The pH of a nutrient solution can affect the availability of the nutrients to plant roots, with some nutrients becoming less available the further from 6.0 pH you go even if they are found in the solution. Some fluctuation in pH is required because different nutrients have quicker uptakes through the range of 5.5 - 6.5, so drifting through this range allows all nutrients to be uptaken by the plant.


Measurement Equipment for Soil Growing

If you're growing in soil, you’ll likely only need a thermo-hygrometer to measure the air temperature and humidity and a beaker, pipette or syringe to measure the volume of nutrients for dosing. In soil a pH meter and EC meter are not absolutely essential but can be used if you want an accurate idea of what’s going on in your nutrients and by testing your run off you can ‘see’ what’s going on inside the pot.


Measurement Equipment for Hydroponic Growing

In Hydroponic System setups, you need to monitor pH and EC as these levels can drift over time as the plant can ‘choose’ to uptake particular nutrients, water or a mix of all from the nutrient solution. The drift will be particularly pronounced in the first 24hrs after a fresh batch of nutrients has been introduced into the system. The rate of this drift heavily depends on the plant’s size as larger plants can uptake more from the solution.


If you’re unsure of the type of measuring equipment you need to measure particular variables within your growing environment, get in touch with our specialist team who can advise you on exactly what you need.

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