Achat vérifié
Cet appareil de poche a un format idéal, il tient bien en main. Le bouton pour la calibration est vraiment pratique, une fonctionnalité qui simplifie tout. Très agréablement surpris !
EC/PH testers
Hanna HI 98304 conductivity meter
4.8
Réf. HANNA-HI-98304
Hanna HI 98304 conductivity meter
Mesure Hanna Conductivimètre
Discover the Hanna HI 98304 conductivity meter. This pocket tester combines precision and simplicity.
Satisfait ou remboursé
14 jours
Retour 14 jours
Frais de retour à votre charge
SAV expert FR
Conseil horticole
Paiement en plusieurs fois
with Alma, from €50 — or pay in 15 days from €100
Hanna HI 98304 conductivity meter
65,85 €
Parraine tes proches
5 % pour toi & 5 % pour ton ami
Description
Product presentation
Discover the Hanna HI 98304 conductivity meter. This pocket tester combines precision and simplicity. You will be able to take quick measurements.
Its case is robust and ergonomic and its display is large. The graphite conductivity probe guarantees repeatability of measurements because it does not oxidize.
Technical data sheet
Features detailed
| Functions | Mesure |
|---|---|
| Marque | Hanna |
| Type | Conductivimètre |
| Matière | Sonde graphite |
| Durée d'action estimée | 200 heures |
| Précision | ±2% de l'échelle à 20°C |
| Étalonnage | Automatique (ATC) |
| Résolution | 0.01 mS/cm |
| Compensation température automatique | 0-50°C |
| Type d'instrument | Conductivimètre (EC) |
| Grandeur mesurée | Conductivité (EC) |
| Poids (g) | 95 |
| Plage de mesure CO2 (ppm) | 0 à 19.99 mS/cm |
Convinced? Shipped from France. Add to cart — 65,85 €
They've adopted it
Reviews customers
Achat vérifié
La calibration est directe et efficace, la précision constante lors de chaque mesure. Utilisation quotidienne sans problème.
Achat vérifié
C'est un très
C'est un très bon produit. Efficace et facile à utiliser. Pas déçu du tout.
Achat vérifié
Reçu rapidement, bien
Reçu rapidement, bien emballé. Fonctionne parfaitement. Vraiment satisfait.
Aucun avis ne correspond à ce filtre.
Frequently asked questions
Your questions
Is the Hanna HI 98304 tester simple enough to use for beginners and precise enough for regular care of light plants at home?
The Hanna HI 98304 conductivity tester is particularly suitable for beginners due to its ease of use: it has only two buttons and an automatic one-point calibration, which makes measurements quick and uncomplicated.
— It is also very accurate, with a margin of error of ±2 % and a fine resolution of 0.01 mS/cm, ideal for monitoring the quality of nutrient solutions used in growing light plants. Its measuring range of up to 20 mS/cm comfortably covers the usual needs in hydroponics or greenhouse cultivation.
— Finally, its durable probe and clear display facilitate reliable and comfortable regular monitoring. This model perfectly combines simplicity and technicality for effective care of your plants at home.
Is this tester easy to calibrate indoors and does it combine multiple measurements or only conductivity?
The Hanna HI 98304 tester is very easy to calibrate indoors thanks to a dedicated button: simply immerse the probe in a standard calibration solution and the device automatically adjusts the value. In terms of measurements, it focuses exclusively on electrical conductivity with a range up to 20 mS/cm, while simultaneously displaying the temperature with automatic compensation. It does not integrate other types of measurements, making it a precise and simple tool dedicated to conductivity and temperature.
What are the concrete advantages of the graphite probe of the Hanna HI 98304 conductimeter compared to traditional probes in terms of precision and durability during frequent measurements in agricultural environments?
The graphite probe of the Hanna HI 98304 conductimeter offers several concrete advantages over traditional metal probes. Thanks to its graphite composition, it significantly limits oxidation and polarization, thus ensuring a precision and repeatability of measurements that are markedly superior over the long term, even with frequent use.
In agricultural environments, where the measured solutions are often corrosive (fertilizers, ion-rich waters), graphite offers a enhanced durability, better resisting corrosion and wear, which guarantees consistent reliability of readings. Moreover, its robustness and ergonomics facilitate repeated measurements in the field.
What is the exact measurement precision and range of the Hannah HI 98304 conductivity meter to optimize efficiency while minimizing electrical consumption errors?
The Hanna HI 98304 conductivity meter measures conductivity over a wide range of 0.00 to 20.00 mS/cm with a fine resolution of 0.01 mS/cm. Its accuracy is ±2% of full scale, providing a very controlled maximum error margin, ideal for reliable monitoring of nutrient solutions.
Additionally, it features automatic temperature compensation between 0 and 50 °C with an accuracy of ±0.5 °C, ensuring accurate readings regardless of thermal variations. Its one-point automatic calibration simplifies its use while reducing handling errors.
These advantages help optimize the yield of your crops by ensuring precise management of conductivity, thus avoiding overconsumption or waste related to incorrect electrical dosing.
Beginner kit with this conductivity meter? OK precision for nutrient control? Easy to use directly indoors?
The Hanna HI 98304 conductivity meter is an excellent choice for measuring the conductivity of nutrient solutions indoors. It offers a suitable precision with a resolution of 0.01 mS/cm and automatic temperature compensation, ideal for reliable nutrient monitoring.
The operation is simple and ergonomic, perfect for direct use in indoor cultivation, even if you are a beginner. However, this model is generally sold alone, without a complete beginner kit. Therefore, you will need to plan for the separate purchase of calibration solutions and accessories for optimal setup.
If you want a complete solution, we also offer calibration kits and accessories to facilitate handling.
Does the graphite probe of the HANNA HI 98304 conductivity meter require special maintenance to ensure long-term accuracy?
The graphite probe of the HANNA HI 98304 conductivity meter features an amperometric graphite electrode, which limits oxidation and improves the reliability of measurements over the long term.
To ensure its accuracy, it is advisable to regularly clean the probe to avoid any contamination that could distort readings. No specific maintenance is required, but regular care is always beneficial.
In case of wear or decreased performance, the probe is replaceable, making it easier to keep it in good working condition.
What are the recommended calibration intervals to ensure the accuracy of the Hanna HI 98304 conductivity meter in a hydroponic environment?
To ensure the accuracy of your Hanna HI 98304 conductivity meter in hydroponics, it is recommended to perform an automatic calibration at one point ideally before each measurement series or at least once a day if you measure frequently. This calibration is done by immersing the probe in the standard solution (typically at 12.88 mS/cm) provided with the device. Remember to clean the probe before calibration to ensure reliable measurement.
This simple routine compensates for probe wear and environmental variations, thus maintaining optimal accuracy in your nutrient solution checks.
How does the Hanna HI 98304 conductivity meter ensure consistent measurement reliability in a wet culture environment?
The Hanna HI 98304 conductivity meter guarantees consistent reliability in wet environments thanks to its stainless steel graphite probe, which is resistant to oxidation and durable. Its waterproof casing protects the device from moisture, ensuring reliable use in humid environments. The automatic calibration facilitates quick and accurate measurements, while the automatic temperature compensation corrects variations for accurate results. With a precision of ±2 % and fine resolution, it is perfectly suited for monitoring your nutrient solutions in indoor cultivation.
Is it possible to integrate the Hanna HI 98304 into a home automation monitoring system to track conductivity in real-time via a mobile app or a voice assistant?
The Hanna HI 98304 is a high-performance device for measuring conductivity, but it lacks native connectivity (Bluetooth, Wi-Fi, USB) for direct integration with a home automation system or a mobile application.
However, for enthusiasts of advanced techniques, it is possible to use customized solutions, such as using a microcontroller (for example Arduino) to capture the data and then transmit it to an application or a voice assistant. This requires some electronic and software tinkering, but opens interesting perspectives for real-time monitoring.
For a more ready-to-use solution, we offer connected sensors specifically designed for home automation integration, which might better match this need.
What is the battery life of the tester and can the graphite probe be easily replaced if needed?
The Hanna HI 98304 tester uses a graphite electrode, known for its robustness and stability, as it does not oxidize. Regarding the battery life, there are no specific data available, but these devices are generally designed to last several hours of continuous use.
For the graphite probe, no specific information mentions the ease of its replacement on this model. In practice, regular maintenance, particularly cleaning the electrode, is strongly advised to ensure accurate measurements.
Is the HI 98304 waterproof for frequent field use in small aquariums or hydroponics?
The Hanna HI 98304 is well designed for frequent field use, particularly in small aquariums or in hydroponics. It is waterproof, allowing it to withstand humid environments and direct contact with water without the risk of damage. Its robustness and portability make it an ideal tool for quick and accurate measurements in the field. You can rely on simple calibration and a clear display to effectively monitor the conductivity and temperature of your solutions.
Does the graphite probe of the Hanna HI 98304 remain reliable during frequent measurements in high conductivity solutions under LED, particularly for nutrient monitoring in SCROG/LST?
The stainless steel graphite probe of the Hanna HI 98304 offers excellent durability and resistance to oxidation, ensuring high reliability even during frequent measurements in high conductivity solutions. It thus guarantees precise repeatability, essential for nutrient monitoring in SCROG/LST cultivation under LED lighting. Suitable for up to 20 mS/cm and equipped with automatic temperature compensation, this probe represents a robust and high-performing choice for your hydroponic monitoring.
How does this conductivity tester handle the different levels of salinity typically found in hydroponics, and is it easy to calibrate without specialized tools?
The Hanna HI 98304 conductivity tester covers a wide range from 0.00 to 20.00 mS/cm, perfectly suited for measuring the typical salinity levels in hydroponics, which generally range from 0.5 to 3.0 mS/cm. It provides an accuracy of ±2% over this range, ensuring reliable monitoring of even your most concentrated nutrient solutions.
Its calibration is particularly simple: it is done automatically at one point, using the calibration solution packets provided (12.88 mS/cm). No specialized tools are necessary, making this step quick and accessible, even without advanced technical experience.
This tester is therefore an excellent choice for precise and easy conductivity control in hydroponics.
What is the battery life of the Hanna HI 98304 conductivity meter during continuous use?
The battery life of the Hanna HI 98304 conductivity meter is approximately 200 hours of continuous use. This model operates on 4 x 1.5 V button cell batteries, ensuring a long duration before replacement.
Does the graphite probe provide consistent accuracy even with frequent use, or does it need to be recalibrated often?
The graphite probe of the Hanna HI 98304 offers consistent accuracy even with frequent use, thanks to its oxidation resistance which ensures very good measurement repeatability. However, it is recommended to periodically recalibrate the device using a specific solution to ensure optimal reliability. Calibration is easy to perform directly on the device and helps maintain accurate results over time.
How to ensure the maintenance of the graphite probe to guarantee the long-term accuracy of measurements?
To ensure the long-term accuracy of the graphite probe of the Hanna HI 98304, it is essential to ensure regular maintenance:
- Frequently clean the probe with distilled water or a mild cleaner to remove any deposits without damaging the graphite.
- Rinse with clear water after each use to avoid the accumulation of contaminants.
- Visually inspect the condition of the probe to prevent cracks or wear, signs that replacement may be necessary.
- Store with the protective cap provided, to protect the probe from dust and shocks.
- Perform regular calibration with appropriate standard solutions to ensure measurement reliability.
- Avoid prolonged exposure to extreme temperature or humidity conditions that could deteriorate the probe.
Following these best practices will keep your conductivity meter in perfect condition, providing you with accurate and reliable measurements over time.
What is the average stabilization time for a conductivity measurement with the Hanna HI 98304 and what is its accuracy in µS/cm?
The Hanna HI 98304 features an exposed temperature sensor that ensures a rapid response. The average stabilization time is therefore short, typically just a few seconds to under a minute, with the stability symbol on the display indicating when the measurement is reliable.
Regarding accuracy, this device offers a resolution of 10 µS/cm (0.01 mS/cm) with an accuracy of ±2 % of full scale, which is approximately ±400 µS/cm at 20,000 µS/cm. It is an excellent compromise for accurate portable measurements within a range of up to 20 mS/cm.
Portable precision EC meter for reduced cultivation space? Reliable graphite probe in microculture?
The Hanna HI 98304 is a portable device very well suited for reduced cultivation spaces due to its compact size and light weight, which facilitate its use in microculture. Its measurement range extends up to 20 mS/cm with an accuracy of ±2%, providing sufficient resolution to precisely control nutrient solutions in small volumes.
Regarding the graphite probe, although the manufacturer does not explicitly specify this material for this model, graphite probes are generally reliable, durable, and resistant to fouling, which are valuable qualities in microculture where the stability of measurements is crucial. This type of probe therefore ensures good repeatability and longevity in reduced cultivation environments.
In summary, for microculture, the Hanna HI 98304 is an excellent choice for a precise and robust portable EC meter, perfectly suited for demanding professional or amateur use.
Is it possible to integrate this Hanna HI 98304 conductivity meter into a home automation system for continuous monitoring and automation of conductivity thresholds in indoor cultivation?
The Hanna HI 98304 conductivity meter is ideal for reliable spot measurements of conductivity in indoor cultivation thanks to its robust graphite electrode. However, it does not have native connectivity (Bluetooth, Wi-Fi, or USB) and does not allow for continuous monitoring or direct automation of conductivity thresholds.
To integrate it into a home automation system, one would need to consider external technical adaptation, such as coupling the sensor to a microcontroller (Arduino, Raspberry Pi), but this requires advanced tinkering that is not officially supported.
If you are looking for a conductivity sensor suitable for continuous monitoring and automation, it is best to opt for models specifically designed for home automation, with compatible protocols.
How do you integrate the measurements from the Hanna HI 98304 into an automated system to adjust watering or plant nutrition in real time?
The Hanna HI 98304 conductivity meter is designed for precise manual measurements of conductivity (EC) and does not have an interface for direct connection to an automated system.
To integrate EC into automated management of watering or nutrition in real time, it is necessary to use EC probes specially designed to be connected to a controller or automation system (such as an API, Arduino, or Raspberry Pi), which continuously collect data and control the equipment based on programmed thresholds.
Nevertheless, the HI 98304 can serve as a calibration and spot validation tool in complement to an automated system.
How does this conductivity meter incorporate automatic calibration to maintain precision over time and the variability of field conditions?
The conductivity meter Hanna HI 98304 integrates an automatic one-point calibration thanks to a specific calibration solution (12.88 mS/cm), which allows the sensor to be precisely reset and ensures reliable measurements despite variations in the field.
This precision is enhanced by an integrated temperature sensor, which performs automatic compensation of the measurements between 0 and 50 °C, adjusting the conductivity according to thermal fluctuations to maintain the accuracy of readings.
Finally, its ease of use allows for quick and regular recalibration, ideal for outdoor or agricultural environments where conditions often change, thereby ensuring excellent stability and reliability over time.
Is it possible to interface this Hanna HI 98304 conductivity meter with a home automation system for real-time monitoring via Wi-Fi or Bluetooth?
The Hanna HI 98304 conductivity meter is a portable device designed for accurate manual conductivity measurements, without Bluetooth, Wi-Fi, or other built-in digital connectivity. Therefore, it cannot be directly interfaced with a home automation system for real-time monitoring.
A home automation integration would require a very technical and non-standard solution, involving an external microcontroller, which remains complex to implement given the absence of an open interface on this model.
For real-time monitoring via Wi-Fi or Bluetooth, we recommend opting for conductivity sensors designed with built-in connectivity, thus facilitating home automation management and data collection.
Does the graphite probe of the HI 98304 require frequent calibration to ensure the accuracy of measurements under intensive growing conditions?
The graphite probe of the Hanna HI 98304 is designed to provide excellent stability and resistance to oxidation, making it ideal for use in intensive cultivation. However, to ensure optimal accuracy of conductivity measurements, periodic calibration is necessary. This calibration is simple, one-point automatic (12.88 mS/cm), and must be carried out regularly according to the frequency of use, particularly in variable and demanding conditions.
After each use, also remember to rinse the probe thoroughly with water and replace the protective cap to preserve its longevity and reliability.
Does the graphite probe of the Hanna HI 98304 really last over time without drifting or oxidizing, especially with intensive field use?
The stainless steel graphite probe of the Hanna HI 98304 conductivity meter is specially designed to resist oxidation and drift, even during intensive field use. This technology significantly limits corrosion and polarization, ensuring stable accuracy and remarkable durability, even in corrosive environments such as fertilizer solutions or ion-rich waters. Thus, you benefit from reliable and repeatable measurements over the long term, a true asset for rigorous outdoor readings.
What are the real advantages of a graphite sensor for the accuracy and durability of conductivity measurements in hydroponics?
The graphite sensor of the Hanna HI 98304 is a true asset for measuring conductivity in hydroponics. Its design minimizes oxidation and polarization, ensuring accurate and repeatable readings even with frequent use. Furthermore, its increased resistance to corrosion from fertilizers and ions present in nutrient solutions guarantees a durability far superior to that of conventional metal probes. Ergonomic and robust, it also facilitates field measurements. With an extended measurement range and automatic temperature compensation, this conductivity meter offers reliable and stable monitoring, essential for optimizing nutrient management in hydroponic cultivation.
What is the precision in microconductivity for a portable EC meter HANNA HI 98304 in compact micro-culture?
The Hanna HI 98304 EC tester offers a measurement range of 0.00 to 20.00 mS/cm (0 to 20,000 µS/cm) with a resolution of 100 µS/cm and an accuracy of ±2% of full scale. This corresponds to an uncertainty of about ±400 µS/cm at full scale.
For compact micro-culture, this precision is generally suitable for common needs, although it does not allow for the detection of very fine variations below 100 µS/cm. It is a robust and reliable device for most EC applications in indoor LED cultivation.
Possible integration with home automation systems to retrieve conductivity measurements in real-time?
The Hanna HI 98304 is a handheld conductivity measurement device, without a native interface for direct connection to a home automation system. To integrate its real-time measurements, a complex technical adaptation would be necessary, such as connecting it to a microcontroller (Arduino, Raspberry Pi), but this solution requires real expertise and is not officially supported.
For automatic integration into a home automation system, it is preferable to use sensors designed for automation with compatible protocols. The Hanna HI 98304 remains an excellent precise tool for spot measurements and calibration of automated systems.
What measurement precision and calibration frequency are recommended for this conductivity meter in a professional parallel culture use?
The conductivity meter Hanna HI 98304 ensures an accuracy of ±2% of full scale with a resolution of 0.01 mS/cm, ideal for professional use in parallel culture where measurement reliability is crucial.
Regarding calibration, it is advisable to perform it regularly, ideally before each important session or at fixed intervals (weekly or monthly) depending on usage frequency. This calibration is easily carried out with a specific solution and ensures consistency in results. Regular maintenance of the probe is also essential to maintain accuracy.
What is the average lifespan of the graphite probe, and is it easily replaceable in case of wear?
The graphite probe of the Hanna HI 98304 conductimeter offers good longevity thanks to its natural resistance to oxidation, especially if you perform regular maintenance with appropriate recalibration. Its warranty is six months, which gives a general indication of its durability in regular use.
Regarding replacement, the probe is not designed to be easily changed by the user. In case of wear, it is advisable to contact customer service to ensure reliable repair or replacement, thus ensuring the accuracy of the measurements.
Not seeing your question?
Your browsing
Viewed recently
Related articles
Hydroponics for Beginners: Introducing the Terra Aquatica Ebb & Grow SystemThis article introduces hydroponics, a soilless growing method, focusing on Terra Aquatica 's Ebb & Grow system ,...
Read more
