To take control of your cannabis grow, you need to be able to take certain measurements! Here we provide our recommendations for all the different types of measuring devices for growing cannabis indoors. We include the hygrometers, pH meter, EC/PPM meter, LUX meter, and Scale that we use in our cannabis grows! Take control of your grow and get the right equipment to measure Temperature, Relative Humidity (RH), pH, Electrical Conductivity (EC), Light, and the weight of your harvest!
Thermometers & Hygrometers
Ambient Weather WS-10
Hygrometers with Probe
Be aware, many similar units have a wired probe that only measures temperature. They may appear to measure both temperature and humidity, but they measure humidity at the base station not with the probe. The units that we recommend here all measure both Temperature and Humidity with probes.
Mini hygrometers are particularly useful for curing because they can easily fit inside the jar with your buds. They also come in handy for seedlings in humidity domes.
The technology involved in measuring pH is sensitive and sophisticated. There are numerous cheap pH meters on the market, but these are shortlived and unreliable. You do not need the most expensive models, but it is worth investing in a quality pH meter.
Apera Instruments pH20
pH Calibration Solution
Electrical Conductivity (EC)
Measuring Electrical Conductivity (EC) is absolutely critical to managing your fertigation strategy and nutrient solution strength. The technology involved in measuring EC is rather simple which means that you do not need to invest in an expensive meter. However, if you use one of these meters, the water should be measured at about the same temperature that it is applied to the plants (about 68f/20c).
10ml Oral Syringes
Light meters are used to evaluate the light distribution in the grow space and to determine the best height to hang your light above the canopy. This is not a required tool. Many growers can do fine following general guidelines, but if you want to dial in your grow you need to be able to measure the light.
This is not required, but you are going to want to know how much you harvested!
Ohaus CL201 Compact Scale
About Our Product Recommendations
At Coco for Cannabis, our mission is to help growers maximize the success of their cannabis crops by providing scientifically accurate information and sharing proven growing practices.
The products that we recommend are the actual products that we chose to purchase and use ourselves. In a few cases, we recommend products that we would buy if we needed them. We do not accept advertising and will not recommend any product that we would not buy for ourselves. We offer this guide as a resource to growers.
We may receive a referral when you purchase products through this page. This is the main revenue stream that keeps Coco for Cannabis up and running! When you click through our links and make purchases you are supporting our work! As an Amazon Associate, we earn from qualifying purchases.
Whether we receive a referral does not influence our recommendations. For example, when products are cheaper to buy locally, we’ll tell you that rather than just recommend a more expensive online option.
The information on cocoforcannabis.com should not be considered as financial, legal, or medical advice. You are responsible for knowing and following the local laws that pertain to cannabis cultivation, possession, and use. Decisions to grow cannabis should be made in consultation with a lawyer or qualified legal advisor. Decisions to use cannabis should be made in consultation with your doctor or medical professional.