The portable HI9814 Multiparameter Hanna Gro Line Meter (pH/EC/TDS/TEMP) is a device designed to allow you to take continuous measurements of the acidity, conductivity, and temperature of your nutrient solution.
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Description
The Hanna brand HI9814 Gro Line Portable Multiparameter Meter is designed to perform multiple measurements with a single device and in a simple way, as the Hanna Gro Line range of meters only has two buttons to operate its system. It also allows us to replace the probe when necessary and even change it for a specific probe to take direct soil measurements.
This professional meter consists of two parts: one is the central computer, which is responsible for taking measurements and displaying them on its LCD screen. The other part is the probe, which has a fiber connection that improves response and ensures connection. The casing it is assembled with is water-resistant, although we do not recommend submerging the device; only the probe should be submerged. This meter's design only includes one probe, which is prepared to provide accurate measurements of pH, EC, TDS, and Temperature, thus speeding up the work when it comes to analyzing irrigation water.
To start working with it, the first thing to do is clean the probe with distilled water. This ensures that the measurements taken will be correct. Then, insert the batteries, close the cover, connect the probe, and press the ON/MODE button once. As soon as it turns on, it will show the battery level, then the full display will appear, and you can observe the pH measurement, temperature, stability, and device warnings. To see the EC or TDS level, simply press the mode button once, and similarly to see the pH level.
To customize the operating system to your liking, first, you must select the EC to TDS conversion mode 500 or 700. Simply press the on button for 6 seconds while the device is on. The letters (EC UNIT) will then appear on the screen, meaning that the selected unit of measurement is EC. To change to TDS 500, just press the (SET HOLD) button once, and the same if you want to change to TDS 700. Once you are clear about the type of measurement, press the on button once, and it will give you a choice between two options for calibrating the device: standard and quick calibration (QUICK CAL).
To calibrate the device, the easiest way is with QUICK CAL, as with just one sachet, you can fully calibrate the HI9814 portable multiparameter meter. pH, EC, and TDS will be perfectly adjusted. To do this, you must press the on button for 3 seconds while the device is on. The word CAL will then appear. At that moment, you must insert the probe into the QUICK CAL calibration sachet until the word OK appears and the LCD screen returns to the beginning. If the calibration is not performed correctly, it will indicate it with a warning.
Technical specifications:
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24/08/2025
You know what? Having everything at hand for EC, pH and temperature really changes the final result... Good results since I've been using it. I like having these measurements, eh? Is it worth the money? Totally.
Translated from Spanish
¿Sabéis qué? Lo de tener todo a mano para la EC, el pH y la temperatura cambia mucho el final... Buenos resultados desde que lo uso. Me gustan estas mediciones, ¿eh? ¿Merece la pena el gasto? Totalmente.
28/07/2025
Oof, after a couple of scares, I decided to invest in this. It truly saves your crop, totally worth the money. Checking pH and EC on the spot is KEY to getting plants to shoot up like rockets. And being portable so you don't have to deal with hassles, awesome. Impressed!
Translated from Spanish
Uff, después de un par de sustos, decidí invertir en esto. De verdad que te salva el cultivo, es una inversión barata. Ver el pH y la EC al momento es CLAVE para que las plantas crezcan como cohetes. Y que sea portátil para no andar con líos, genial. ¡Impresionado!
20/07/2025
Awesome! Super practical and very fast delivery. Absolute pleasure.
Translated from Spanish
¡Una pasada! Súper práctico y la entrega rapidísima. Da gusto.
19/07/2025
Now the plants are really taking off! Measuring everything together is amazing, I've never felt so good about it. A huge game-changer, believe me.
Translated from Spanish
Ahora sí que las plantas tiran! Medir todo junto es una bomba, nunca me había encontrado tan bien. Un cambio brutal, creedme.
31/05/2021
Spectacular!!!!!!
Translated from Spanish
Espectacular!!!!!!