Portable Multi-Parameter Water Quality Meter 'WQC-40'
Simultaneous measurement of up to 9 items with a single unit! Compatible with water depths of 100m. For environmental monitoring and water quality management in factories, farms, and aquaculture.
The "WQC-40" is a portable water quality meter that supports various measurements including pH, electrical conductivity, salinity, TDS (total dissolved solids), seawater specific gravity, turbidity, temperature, dissolved oxygen, ORP (oxidation-reduction potential), ions, and water depth. The sensor module in the measurement section can simultaneously measure up to 9 items with a single unit and is capable of measuring water depths up to 100 meters, making it useful for environmental monitoring of rivers, lakes, and dams, as well as for water quality management in factories and aquaculture sites. It has a diameter of 45mm, allowing for easy insertion into drilling investigation pipes and other equipment. By connecting the optional Modbus power box to a general-purpose gateway, a water quality monitoring system can also be established. 【Measurement Items】 Standard: pH, electrical conductivity, salinity, TDS (total dissolved solids), seawater specific gravity, turbidity, temperature Optional: dissolved oxygen, ORP (oxidation-reduction potential), water depth, ions *Ion electrodes can be selected from 6 types (fluoride, chloride, nitrate, calcium, potassium, ammonium ions) *For detailed information such as measurement ranges, please refer to the documentation. Feel free to contact us with any inquiries.
basic information
【Product Specifications】 <Main Unit> Waterproof Structure: IP67 (can be submerged at 1m for 30 minutes) *Invalid when sensor module is not connected and during external input/output and USB use USB: Standard equipped with MicroUSB and USB peripheral (isolated) Serial Communication: Standard equipped with RS-232C (shared with external printer, RS-232C, GPS unit, and analog output, non-isolated) Analog Output: DC 100–2400mV, up to 6 items can be set (isolated) Open Collector Output: Alarm output 2 points DC 25V, below 50mA (isolated) Dimensions: Approximately W70×H39×D188mm *Excluding protrusions Guaranteed Operating Temperature: 0–45℃ <Sensor Module> Waterproof Structure: Within 100m (1.0MPa) *Water depth with ion electrode attached can vary from 5 to 15m depending on the type of electrode Dimensions: (Standard) Approximately φ45×L425mm, (with depth sensor) approximately φ47×L500mm *Excluding protrusions Guaranteed Operating Temperature: 0–45℃ *For more details, please refer to the documentation. Feel free to contact us with any inquiries.
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Applications/Examples of results
【Applications】 ■ Rivers and Lakes ■ Dams ■ Industrial Wastewater ■ Aquaculture ■ Agricultural Water *For more details, please refer to the PDF document or feel free to contact us.
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[Exhibition Information] We will be exhibiting at the Hiroshima Waterworks Exhibition 2025 [Held from October 29 (Wednesday) to 31 (Friday)!]
Toa DKK will exhibit at the "Hiroshima Waterworks Exhibition 2025" held from October 29 (Wednesday) to October 31 (Friday). Venue: Hiroshima Gate Park ◎ For simple measurements and continuous monitoring in environmental conservation sites ◎ ◎ For water quality analysis operations at water purification plants ◎ We will showcase our products centered around our company and HACH's water quality analyzers. Toa DKK Booth No. 126 <Main Exhibited Products> - Automatic water quality measurement device for tap water - Turbidity meter - Pocket residual chlorine meter - Desktop turbidity meter / Portable turbidity meter - Portable heavy metal analyzer Pre-registration can be done from the official website. https://suidoten.jp/2025/ >> We look forward to your visit! <<
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[Exhibition Information] We will be exhibiting at the Hiroshima Waterworks Exhibition 2025 [Starting from October 29 (Wednesday)!]
Toa DKK will be exhibiting at numerous trade shows. This time, we would like to announce the "Hiroshima Waterworks Exhibition 2025," which will be held from October 29 (Wednesday) to October 31 (Friday). Venue: Hiroshima Gate Park ◎ For simple measurements and continuous monitoring in environmental conservation settings ◎ ◎ For water quality analysis work at water purification plants ◎ We will be showcasing our company and HACH's water quality analyzers. Toa DKK Booth No. 126 <Main Exhibited Products> - Automatic water quality measurement device for tap water - Turbidity meter - Pocket residual chlorine meter - Desktop turbidity meter / Portable turbidity meter - Portable heavy metal analyzer Pre-registration can be done through the official website. https://suidoten.jp/2025/ >> We look forward to your visit! <<
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【Exhibition Information】Exhibiting at JASIS 2025 | Proposing automation and labor-saving solutions for water quality analyzers! Live demonstration with a turntable will also be conducted 【Starting September 3!】
Toa DKK will exhibit at "JASIS 2025," which will be held at Makuhari Messe from September 3 (Wednesday) to September 5 (Friday), 2025. Our exhibition booth is located in Hall 7, No. 7B-501. At our booth, we plan to showcase a wide range of water quality analysis instruments utilizing our unique electrochemical sensor technology. A highlight will be the automatic measurement system for multiple samples, which connects a tabletop water quality meter and an automatic titrator with a turntable (TTT-710). We will introduce solutions that contribute to the automation and labor-saving of analytical tasks, featuring actual equipment. In addition, you can view a diverse product lineup including the X series (tabletop water quality meters), P40 series (portable water quality meters), ICA-7000 (ion chromatograph), IA-300 (ion analyzer), AUT-801 (automatic titrator), kemio (heavy metal analyzer), DR series (spectrophotometers), and turbidity meter series. During the exhibitor seminars, we will provide technical information on three themes: "Fundamentals of Water Quality Measurement," "Fundamentals of Automatic Titrators," and "Fundamentals of Ion Chromatography (IC)." We sincerely look forward to your visit.
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Opening of the Toa D.K.K. official YouTube channel!
We have launched the official YouTube channel of Toa DKK! We are currently featuring product introduction videos and helpful videos about measurement operations. We plan to add various content in the future. Please take a look and consider subscribing to our channel!
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【Exhibition Information】Exhibiting at JASIS 2025 | Proposing automation and labor-saving solutions for water quality analyzers! Live demonstration with a turntable will also be conducted 【Starting September 3!】
Toa DKK will exhibit at "JASIS 2025," which will be held at Makuhari Messe from September 3 (Wednesday) to September 5 (Friday), 2025. Our exhibition booth is located in Hall 7, No. 7B-501. At our booth, we plan to showcase a wide range of water quality analysis instruments utilizing our unique electrochemical sensor technology. A highlight will be the automatic measurement system for multiple samples, which connects a tabletop water quality meter and an automatic titrator with a turntable (TTT-710). We will introduce solutions that contribute to the automation and labor-saving of analytical tasks, featuring actual equipment. In addition, you can view a diverse product lineup including the X series (tabletop water quality meters), P40 series (portable water quality meters), ICA-7000 (ion chromatograph), IA-300 (ion analyzer), AUT-801 (automatic titrator), kemio (heavy metal analyzer), DR series (spectrophotometers), and turbidity meter series. During the exhibitor seminars, we will provide technical information on three themes: "Fundamentals of Water Quality Measurement," "Fundamentals of Automatic Titrators," and "Fundamentals of Ion Chromatography (IC)." We sincerely look forward to your visit.
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【Exhibition Information】Exhibiting at JASIS 2025 | Proposing automation and labor-saving solutions for water quality analyzers! Live demonstration with a turntable will also be conducted 【Starting September 3!】
Toa DKK will exhibit at "JASIS 2025," which will be held at Makuhari Messe from September 3 (Wednesday) to September 5 (Friday), 2025. Our exhibition booth is located in Hall 7, No. 7B-501. At our booth, we plan to showcase a wide range of water quality analysis instruments utilizing our unique electrochemical sensor technology. A highlight will be the automatic measurement system for multiple samples, which connects a tabletop water quality meter and an automatic titrator with a turntable (TTT-710). We will introduce solutions that contribute to the automation and labor-saving of analytical tasks, featuring actual equipment. In addition, you can view a diverse product lineup including the X series (tabletop water quality meters), P40 series (portable water quality meters), ICA-7000 (ion chromatograph), IA-300 (ion analyzer), AUT-801 (automatic titrator), kemio (heavy metal analyzer), DR series (spectrophotometers), and turbidity meter series. During the exhibitor seminars, we will provide technical information on three themes: "Fundamentals of Water Quality Measurement," "Fundamentals of Automatic Titrators," and "Fundamentals of Ion Chromatography (IC)." We sincerely look forward to your visit.
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Toa DKK was established in 2000 through the merger of Toa Electric Wave Industry Co., Ltd. (TOA) and DKK-TOA Co., Ltd. (DKK). Our products are active in the fields of environment (water, air, gas) and medical applications. Utilizing our unique core technology, the "electrochemical sensor," we provide products and services that meet our customers' needs. We will continue to strive to be a company that contributes to the preservation of the global environment and the realization of a healthy lifestyle.