セントラル科学 Product Lineup

From heavy metals to nitrogen and phosphorus, a single device can measure a variety of items. A multi-parameter water quality meter with pre-programmed analysis programs. 【Features】 ○ Automatic identification via barcode ○ Equipped with automatic cell identification function ○ Results displayed simply by inserting the cell ○ Over 200 types of measurement programs ○ 100 types of user program settings ○ Easy data management via USB and RS-232 interface ○ Wavelength range: 190 to 1100 nm ● For other functions and details, please download the catalog.

The pHotoFlex series is a portable multi-parameter water quality measuring device that can handle water quality analysis on-site as well as laboratory-level measurements. It comes standard with over 130 measurement programs, covering water quality parameters such as inorganic nitrogen, phosphorus, COD, residual chlorine, and various metals. Depending on the model, it can perform pH and turbidity measurements with a single device, making it suitable for a wide range of applications including sewage and wastewater management, drinking water, boiler water, industrial water, and environmental surveys. 【Features】 - Multi-parameter water quality measurement with a single device Over 130 analysis methods are pre-programmed, and user-defined measurement programs can also be registered. - Laboratory-level measurement accuracy in a portable design Quantitative measurements using the absorbance method achieve a high correlation with official methods. - Three models available Choose from STD, pH, or Turb models according to your application. - Supports pH and turbidity measurements (model-specific) Compatible with electrode-type pH measurements and high-precision turbidity measurements below 1 NTU. - Easy operation and reduced working time Simple pre-treatment and operation, with reduced amounts of reagents and waste. - Durable design IP67 waterproof structure ensures reliability for field use.

Portable water quality meter equipped with features of laboratory measuring instruments and built-in numerous programs, capable of measuring various water quality parameters. 【Features】 ○ 70 built-in programs for measuring key parameters in water quality management, such as phosphorus and COD. ○ All necessary reagents are pre-prepared, allowing for the use of tablet reagents, powder reagents, liquid reagents, or test tube reagents depending on the parameter. ○ Measurement wavelengths: 430, 530, 560, 580, 610, 660 nm. ○ Light source: LED. ○ Dimensions: approximately 210 (L) × 95 (W) × 45 (H) mm. ○ Weight: approximately 450 g. ● For other functions and details, please download the catalog.

【High Precision】 - High precision and rapid measurement with innovative optical systems - Quick measurement with one-time zero function - Data storage compliant with GLP 【Ease of Use】 - Simple operability - Display with animations - Automatic storage of up to 100 measurement results 【Durability】 - Portable design for any environment - Robust design with IP67 rating - Capable of up to 5000 measurements on dry batteries

【High Precision】 - High precision and rapid measurement with innovative optical systems - Quick measurement with one-time zero function - Data storage compliant with GLP 【Ease of Use】 - Simple operability - Display with animations - Automatic storage of up to 100 measurement results 【Durability】 - Portable design for any environment - Robust design with IP67 rating - Capable of up to 5000 measurements on dry batteries

【High Precision】 - High precision and rapid measurement with an innovative optical system - Quick measurement with one-time zero function - Data storage compliant with GLP 【Ease of Use】 - Simple operability - Display with animations - Automatic storage of measurement results for 100 times 【Durability】 - Portable for any site - Robust design with IP67 rating - Capable of up to 5000 measurements on dry batteries

【High Precision】 - High precision and rapid measurement with innovative optical systems - Quick measurement with one-time zero function - Data storage compliant with GLP 【Ease of Use】 - Simple operability - Display with animations - Automatic storage of up to 100 measurement results 【Durability】 - Portable for use in any environment - Robust design with IP67 rating - Capable of up to 5000 measurements on dry batteries

【High Precision】 - High precision and rapid measurement with innovative optical systems - Quick measurement with one-time zero function - Data storage compliant with GLP 【Ease of Use】 - Simple operability - Display with animations - Automatic storage of up to 100 measurement results 【Durability】 - Portable design for any environment - Robust design with IP67 rating - Capable of up to 5000 measurements on batteries

【High Precision】 - High precision and rapid measurement with innovative optical systems - Quick measurement with one-time zero function - Data storage compliant with GLP 【Ease of Use】 - Simple operability - Display with animations - Automatic storage of up to 100 measurement results 【Durability】 - Portable for any site - Robust design with IP67 rating - Capable of up to 5000 measurements on dry batteries

【High Precision】 - High precision and rapid measurement with innovative optical systems - Quick measurement with one-time zero function - Data storage compliant with GLP 【Ease of Use】 - Simple operability - Display with animations - Automatic storage of up to 100 measurement results 【Durability】 - Portable design for use in any environment - Robust design with IP67 rating - Capable of up to 5000 measurements on dry batteries

【High Precision】 - High precision and rapid measurement with innovative optical systems - Quick measurement with one-time zero function - Data storage compliant with GLP 【Ease of Use】 - Simple operability - Display with animations - Automatic storage of up to 100 measurement results 【Durability】 - Portable for any site - Robust design with IP67 rating - Capable of up to 5000 measurements on dry batteries

【High Precision】 - High precision and rapid measurement with innovative optical systems - Quick measurement with one-time zero function - Data storage compliant with GLP 【Ease of Use】 - Simple operability - Display with animations - Automatic storage of up to 100 measurement results 【Durability】 - Portable design for any environment - Robust design with IP67 rating - Capable of up to 5000 measurements on dry batteries

【High Precision】 - High precision and rapid measurement with an innovative optical system - Quick measurement with one-time zero function - Data storage compliant with GLP 【Ease of Use】 - Simple operability - Display with animations - Automatic storage of measurement results for 100 times 【Durability】 - Portable design for any environment - Robust design with IP67 rating - Capable of up to 5000 measurements on dry batteries

The SD series pocket testers are easy to carry with one hand and are compact enough to fit in your pants pocket. With a refreshed design, they can instantly measure pH, ORP, conductivity, salinity, TDS, and more on-site. - Transparent lid for easy maintenance and storage - Optimal design for stable vertical placement - Screen display designed with user-friendliness in mind - Easy battery and electrode replacement

The SD series pocket testers are easy to carry with one hand and are compact enough to fit in your pants pocket. With a refreshed design, they can instantly measure pH, ORP, conductivity, salinity, TDS, and more on-site. - Transparent lid for easy maintenance and storage - Optimal design for stable vertical placement - Screen display designed for ease of use - Easy battery and electrode replacement

The SD series pocket testers are easy to carry with one hand and are compact enough to fit in your pants pocket. With a refreshed design, they can instantly measure pH, ORP, conductivity, salinity, TDS, and more on-site. - Transparent lid for easy maintenance and storage - Optimal design for stable vertical placement - Screen display designed with user-friendliness in mind - Easy replacement of batteries and electrodes

The SD series pocket testers are easy to carry with one hand and are small enough to fit in your pants pocket. With a refreshed design, they can instantly measure pH, ORP, conductivity, salinity, TDS, and more on-site. - Transparent lid for easy maintenance and storage - Optimal design for stable vertical placement - Screen display designed for ease of use - Easy battery and electrode replacement

The MD50 series is a high-precision spectrophotometer specialized for single parameters. It combines an innovative optical system with intuitive operability, enabling rapid and accurate water quality analysis in the field. Its robust design compliant with IP67 allows for stable measurements even in harsh environments. 【Main Features】 - High precision & rapid measurement: The innovative optical system and one-time zero function enable accurate measurements in a short time. - Intuitive operability: Guidance through icons and animations, with result notifications via backlight (green = normal, red = abnormal). - Data management: Data can be transferred via NFC or USB-C. Equipped with GLP-compliant automatic data saving function. - High versatility: Compatible with various reagents such as tablets, powders, and liquids. - Durability: IP67 waterproof design, capable of up to 5000 measurements with two AA batteries.

The MD150 series is a multi-parameter photometer that can quickly and accurately measure multiple water quality parameters. It features an innovative optical system and an intuitive user interface, making it ideal for use in various settings such as pools, laboratories, and fieldwork. It is equipped with a robust design compliant with IP67 standards and flexible data management capabilities via NFC/USB-C. 【Key Features】 Multi-parameter support: Chlorine, pH, bromine, ozone, chlorine dioxide, cyanuric acid, alkalinity, calcium hardness, and more Intuitive operability: Guided by icons and animations, LCD with backlight One-time zero function: Valid for 8 hours as long as the power is not turned off, reducing measurement time High robustness: IP67 compliant, dustproof and waterproof design, ergonomic design with anti-slip features Data management: Compatible with AquaLX app and Lovibond Data Expert via NFC or USB-C GLP compliant: Automatic data saving, protocol recording, user-defined method support

Scuba 3s is a smart and multifunctional water quality tester that can easily measure up to 9 parameters of water quality, such as residual chlorine, pH, and cyanuric acid. It meets the needs for "easy measurement" and "sending data to a smartphone" in water quality management for pools, spas, and bathing facilities.

In the wastewater treatment industry, efficient water quality management is required. In particular, the rapid measurement of SS (suspended solids) concentration is essential for optimizing the treatment process, reducing operational costs, and minimizing environmental impact. Traditional measurement methods have been problematic due to their time-consuming and labor-intensive nature. The MD50 SS can quickly measure SS without reagents, thereby streamlining on-site water quality management and addressing these challenges. 【Usage Scenarios】 - Measurement of SS in inflow and treated water at wastewater treatment plants - Monitoring of wastewater treatment processes - Rapid understanding of SS concentration in water quality management 【Benefits of Implementation】 - Improved operational efficiency through reduced measurement time - Lower running costs - Optimization of treatment processes through rapid acquisition of water quality management data

In the paper industry, water quality management in the manufacturing process is a crucial factor that affects product quality. Particularly in the papermaking process using pulp and recycled paper as raw materials, managing the concentration of suspended solids (SS) is essential. High SS concentrations can lead to a decline in paper quality and equipment issues. MD50 SS contributes to the efficiency of quality management in the papermaking process by allowing for rapid measurement of SS without reagents. 【Usage Scenarios】 - Monitoring SS concentration in the papermaking process - Managing SS concentration in wastewater treatment processes - Water quality testing of raw water and process water 【Benefits of Implementation】 - Optimization of process management through rapid SS measurement - Reduction of running costs due to reagent-free operation - Improvement in quality through stable measurement results

In the food manufacturing industry, the cleanliness of manufacturing equipment is a crucial factor that affects product quality and safety. Insufficient cleaning can lead to foreign matter contamination and quality deterioration, potentially damaging a company's reputation. Additionally, managing wastewater after cleaning is important for reducing environmental impact. The MD50 SS facilitates the evaluation of cleanliness by quickly measuring suspended solids (SS) in post-cleaning wastewater, supporting appropriate wastewater management. Since it can be measured without reagents, it enables efficient water quality management while keeping running costs low. 【Application Scenarios】 - Evaluation of cleanliness in food manufacturing equipment - Management of wastewater after cleaning - Water quality monitoring in the manufacturing process 【Benefits of Implementation】 - Improved quality management through the visualization of cleanliness - Optimization of wastewater management leading to reduced environmental impact - Increased operational efficiency through reduced measurement time

In the beverage manufacturing industry, managing the clarity of water quality during the production process is crucial for maintaining product quality. Contamination can not only compromise the appearance of the product but also lead to deterioration in taste and quality. The MD50 SS is a portable SS meter that can quickly measure suspended solids (SS) without reagents. This helps streamline water quality management on the production floor and contributes to improving product quality. 【Usage Scenarios】 - Monitoring water quality during the production process - Quality control of products - Clarity management 【Benefits of Implementation】 - Early detection of anomalies through rapid measurement - Reduction in running costs - Stabilization of product quality

In power plants, managing the water quality of cooling water is essential for the efficient operation of equipment and ensuring safety. Suspended solids (SS) in cooling water can lead to a decline in the performance of heat exchangers and corrosion, potentially worsening the operational efficiency of the plant. The MD50 SS allows for rapid measurement of SS without reagents, enabling real-time monitoring of cooling water conditions and supporting appropriate water quality management. 【Usage Scenarios】 - Water quality management through SS measurement of cooling water - Management of wastewater from cooling towers - Monitoring of plant operating conditions 【Benefits of Implementation】 - Prevents troubles in the cooling water system, contributing to stable equipment operation - Reduces running costs - Early detection of abnormalities through rapid measurement

In wastewater treatment in the mining industry, the rapid and accurate measurement of suspended solids (SS) concentration is essential for compliance with environmental regulations and improving operational efficiency. High SS concentrations can reduce the efficiency of the wastewater treatment process and increase the environmental burden. The MD50 SS allows for easy measurement of SS concentration without reagents, facilitating on-site monitoring and enabling quick responses. 【Usage Scenarios】 - Mine wastewater treatment plants - Concentration plants - Monitoring of wastewater treatment processes 【Benefits of Implementation】 - Optimization of wastewater treatment processes through rapid understanding of SS concentration - Reduction of running costs due to reagent-free operation - Improved compliance with environmental regulations

In the process management of chemical plants, the rapid and accurate measurement of suspended solids (SS) is essential for quality control and efficient operation. Proper management of SS concentration in wastewater treatment and product quality control within the plant contributes to improved product yield and compliance with environmental regulations. The MD50 SS enables reagent-free measurement, allowing for quick SS measurement on-site while reducing running costs. 【Application Scenarios】 - Plant wastewater treatment processes - Quality control in product manufacturing processes - Monitoring of process water 【Benefits of Implementation】 - Early detection of anomalies through rapid measurement - Reduction of running costs - Compliance with environmental regulations

In the field of environmental surveys, early detection of water quality pollution and rapid response are required. In particular, on-site measurement of SS (suspended solids) is essential for identifying pollution sources and understanding pollution conditions. Traditional measurement methods require the use of reagents and complicated procedures, which pose challenges due to the time it takes for measurements. The MD50 SS allows for easy measurement of SS without reagents, enabling rapid water quality management on-site. 【Usage Scenarios】 - Water quality surveys of rivers, lakes, and oceans - Monitoring of wastewater treatment facilities - Management of industrial wastewater - Rapid situation assessment in environmental pollution incidents 【Benefits of Implementation】 - Early understanding of pollution conditions through rapid on-site SS measurement - Reduction of running costs due to reagent-free operation - Increased efficiency of measurement tasks due to intuitive operability - Use in harsh environments thanks to IP67 waterproof and dustproof design - Streamlined data management through automatic data saving and data transfer via USB-C/NFC

In river management, water quality assessment is essential for environmental conservation and safe water use. In particular, the measurement of SS (suspended solids) is important as an indicator of water quality pollution, requiring rapid and accurate data collection. Traditional measurement methods necessitate the use of reagents and complicated procedures, hindering efficient water quality management in the field. The MD50 SS allows for easy measurement of SS without reagents, contributing to the efficiency of water quality assessment in river management. 【Usage Scenarios】 - Water quality surveys of rivers - Monitoring of wastewater treatment facilities - Environmental impact assessments 【Effects of Implementation】 - Rapid detection of water quality anomalies through quick SS measurements in the field - Reduction of running costs - Efficient management of measurement data

In lake and pond surveys, understanding the progression of eutrophication is essential for water quality conservation. Eutrophication can lead to an increase in suspended solids (SS) in the water, potentially harming the ecosystem. It is important to measure SS quickly and accurately to grasp the situation. The MD50 SS allows for SS measurement without reagents, enabling easy on-site measurements. 【Usage Scenarios】 - Water quality surveys of lakes and ponds - Monitoring of eutrophication - Environmental impact assessments 【Benefits of Implementation】 - Early measures through rapid data collection - Reduction of running costs - Water quality management based on accurate data

In pool hygiene management, water quality is extremely important for protecting the health of users. In particular, the management of suspended solids (SS) is essential for maintaining water clarity and reducing the risk of infections. Inadequate SS management can lead to water turbidity and unpleasant odors, potentially causing discomfort and health issues for users. The MD50 SS is designed to allow pool water quality managers to quickly and accurately measure SS on-site. 【Usage Scenarios】 - Pool water quality testing - Evaluation of filter performance - Water quality confirmation after cleaning 【Benefits of Implementation】 - Rapid detection of water quality abnormalities - Increased user satisfaction through proper water quality management - Cost reduction (reagent costs, labor costs)

In the aquaculture industry, water quality management is crucial for maintaining a good growth environment for seafood. In particular, deterioration of water quality can lead to the occurrence of fish diseases and poor growth, directly impacting profits. It is essential to quickly and accurately measure parameters such as residual chlorine, pH, and cyanuric acid to maintain appropriate water quality. Scuba 3s strongly supports water quality management in aquaculture with easy operation and smartphone-linked data management. 【Usage Scenarios】 - Water quality monitoring in aquaculture ponds - Rapid identification of causes during water quality anomalies - Streamlining water quality management records 【Benefits of Implementation】 - Maintenance of seafood health and promotion of growth - Reduction of disease risk - Shortening and streamlining of work time

In pool hygiene management, water quality is a very important factor in protecting the health of users. Proper management of residual chlorine concentration and pH levels is essential to reduce the risk of infections and maintain a comfortable swimming environment. However, traditional testing methods have been challenging due to their time-consuming and labor-intensive nature. Scuba 3s enables the rapid and accurate measurement of multiple parameters, including residual chlorine, pH, and cyanuric acid, facilitating effective pool water quality management. 【Usage Scenarios】 - Pool water quality testing - Water quality management in bathing facilities - Streamlining water quality management 【Benefits of Implementation】 - Reduced measurement time - Improved accuracy of water quality management - Enhanced efficiency in data management

In the hot spring industry, accurately understanding water quality components is essential for maintaining water quality and ensuring user safety. In particular, components such as pH, residual chlorine, and hardness significantly affect the efficacy and hygiene of hot springs. If proper water quality management is not conducted, the risk of deterioration of water quality and health hazards due to the emergence of bacteria like Legionella increases. Scuba 3s quickly and accurately measures the components of hot spring water, addressing these challenges. 【Usage Scenarios】 - Management of hot spring water quality - Analysis of source water components - Hygiene management of bath water - Monitoring of water quality changes 【Benefits of Implementation】 - Maintenance of water quality through accurate data acquisition - Provision of a safe bathing environment - Streamlining of water quality management operations - Improvement of customer satisfaction

In the food manufacturing industry, managing the quality of water used in the production process is crucial to ensure product quality and safety. In particular, proper management of residual chlorine concentration and pH levels is essential to prevent foreign matter contamination and microbial pollution. Scuba 3s contributes to the efficiency of water quality management in the manufacturing process by quickly and accurately measuring these water quality parameters. 【Usage Scenarios】 - Water quality testing in food manufacturing processes - Water quality management for cooling water and cleaning water - HACCP compliance 【Benefits of Implementation】 - Early detection of water quality abnormalities to maintain quality - Reduction of work time and increased efficiency - Streamlining management tasks through digitization of records

In aquariums, water quality management is crucial for maintaining the health of the organisms. Deterioration of water quality can lead to diseases or death of the organisms. In particular, parameters such as residual chlorine, pH, and cyanuric acid have a significant impact on the living environment of the organisms. Scuba 3s quickly and accurately measures these water quality parameters to support water quality management. 【Usage Scenarios】 - Checking water quality in tanks - Monitoring the health status of organisms - Creating water quality management records 【Benefits of Implementation】 - Early detection of water quality abnormalities - Maintenance of organism health - Increased efficiency in water quality management tasks

In environmental surveys, the rapid and accurate acquisition of water quality data is essential. Particularly for the early detection of water pollution and monitoring environmental changes, it is important to efficiently conduct multi-parameter water quality measurements. Scuba 3s supports the measurement of up to 9 parameters, including residual chlorine, pH, and cyanuric acid, providing strong support for on-site water quality management. 【Usage Scenarios】 - Water quality surveys of rivers, lakes, and oceans - Monitoring of wastewater treatment facilities - Environmental pollution investigations 【Benefits of Implementation】 - Comprehensive water quality assessment through multi-parameter measurements - Improved data management efficiency through smartphone integration - High reliability on-site due to IPX7 waterproofing

In river pollution surveys, it is important to accurately grasp water quality and identify pollution sources as well as assess environmental impacts. In particular, there is a need to quickly measure the concentrations of pH, residual chlorine, and other harmful substances to detect abnormalities early. Scuba 3s is designed to facilitate these measurements easily and quickly. 【Usage Scenarios】 - River water quality surveys - Environmental monitoring - Pollution source identification 【Benefits of Implementation】 - Comprehensive water quality assessment through multi-parameter measurement - Early response through rapid data collection - Efficient data management through NFC data transfer

In lake and pond ecosystems, maintaining water quality is extremely important. Changes in water quality, such as pH, residual chlorine, and cyanuric acid, can have a significant impact on the organisms living there and may disrupt the balance of the ecosystem. Rapid and accurate water quality measurements are essential for early detection of abnormalities and for taking appropriate measures. Scuba 3s addresses these challenges and supports water quality management in lakes and ponds. 【Usage Scenarios】 - Water quality surveys in lakes and ponds - Environmental monitoring - Ecosystem conservation activities 【Benefits of Implementation】 - Early detection of water quality abnormalities - Minimizing impacts on the ecosystem - Efficient management through rapid data collection

In the quality inspection of drinking water, rapid and accurate water quality measurements are required to ensure a safe water supply. In particular, parameters such as residual chlorine and pH are important for assessing water safety. Variability in measurement results and delays in measurement can increase risks in quality management. Scuba 3s addresses these challenges by streamlining drinking water quality management with multi-parameter measurement, easy operation, and data transfer capabilities. 【Usage Scenarios】 - Quality checks in the drinking water production process - Routine inspections of water storage tanks and supply facilities - Record-keeping related to water quality management 【Benefits of Implementation】 - Early detection of abnormalities through rapid measurement - Increased efficiency in recording and managing measurement data - Improved quality through accurate understanding of water quality information

In experiments conducted at research institutions, accurate water quality management significantly impacts the results. In particular, parameters such as pH, residual chlorine, and cyanuric acid are crucial factors that influence the reproducibility and reliability of experiments. Scuba 3s supports the measurement of up to nine parameters, including these, to enhance water quality management and improve the quality of experiments. 【Usage Scenarios】 - Water quality management in chemical experiments - Water quality management of media and aquariums in biological experiments - Water quality surveys in environmental analysis 【Benefits of Implementation】 - Improved reliability of experimental data - Increased efficiency of experiments - Simplified recording and management of measurement results

In environmental surveys, the rapid and accurate acquisition of water quality data is essential. To enable the early detection of water pollution and to measure the effectiveness of environmental conservation measures, equipment that can comprehensively and easily measure a variety of water quality parameters is required. The photoFlex supports on-site water quality analysis with over 130 measurement programs in a single device. 【Usage Scenarios】 - Water quality surveys of rivers, lakes, and oceans - Monitoring of wastewater treatment facilities - Environmental pollution investigations 【Benefits of Implementation】 - Efficient data collection through multi-parameter measurement - Rapid water quality assessment on-site - High durability due to IP67 waterproof construction

In the beverage manufacturing industry, managing the water quality used in production is crucial for maintaining product quality. In particular, it is essential to prevent foreign matter contamination and microbial pollution to ensure product safety. Inadequate water quality management can lead to product quality deterioration and potential health hazards for consumers. The photoFlex portable spectrophotometric multiparameter water quality meter allows for multiparameter water quality measurements with a single device, supporting quality management in beverage production. 【Usage Scenarios】 - Water quality testing in the manufacturing process - Product quality checks - Raw water quality testing 【Benefits of Implementation】 - Improved efficiency in quality management through rapid water quality testing - Comprehensive understanding of water quality through multiparameter measurements - Quick response through on-site measurements

In the wastewater treatment industry, compliance with environmental regulations is essential. It is necessary to accurately understand the concentration of harmful substances in wastewater and to carry out appropriate treatment. In particular, parameters such as COD, nitrogen, and phosphorus are often subject to legal regulations, making rapid and accurate measurement crucial. photoFlex enables multi-parameter water quality measurement with a single device, facilitating quick measurements on-site and strongly supporting regulatory compliance. 【Usage Scenarios】 - Daily water quality management at wastewater treatment facilities - Monitoring of discharged water - Water quality checks in process management - Environmental surveys 【Benefits of Implementation】 - Ensures compliance with legal regulations - Improves operational efficiency by reducing measurement time - Enhances the reliability of measurement data - Reduces costs (decrease in reagent and waste liquid amounts)

In education and research on water quality analysis at universities, accurate and reliable data acquisition is essential. By having students conduct actual water quality measurements and analyze the results, they can deepen their understanding of the mechanisms of water pollution and environmental issues. However, traditional measurement methods have posed challenges, as they are time-consuming and cumbersome, making it difficult for many students to conduct experiments simultaneously. photoFlex allows for multi-parameter water quality measurements with a single device and is easy to operate. This enables students to easily experience water quality measurement and gain more practical learning. 【Usage Scenarios】 - Water quality analysis experiments in university courses such as environmental science, chemistry, and biology - Water quality surveys in research laboratories - Water quality monitoring during fieldwork by students 【Effects of Implementation】 - Increased practical learning opportunities for students - Reduction and efficiency of experiment time - Deepened understanding through the measurement of diverse water quality parameters