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  1. Home
  2. Testing, Analysis and Measurement
  3. 東亜ディーケーケー 本社、営業所(札幌・仙台・千葉・名古屋・大阪・広島・四国・北九州)、事業所(狭山、東大和)
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Testing, Analysis and Measurement
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東亜ディーケーケー 本社、営業所(札幌・仙台・千葉・名古屋・大阪・広島・四国・北九州)、事業所(狭山、東大和)

EstablishmentSeptember 19, 1944
capital184248Ten thousand
number of employees569
addressTokyo/Shinjuku-ku/1-29-10 Takadanobaba
phone03-3202-0219
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last updated:Aug 01, 2025
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東亜ディーケーケー List of Products and Services

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We have a variety of pH meters available: tabletop, portable, and installed types! We have a variety of pH meters available: tabletop, portable, and installed types!
下水道処理施設向け計測器 SS濃度計、溶存酸素計、全窒素・全りん 下水道処理施設向け計測器 SS濃度計、溶存酸素計、全窒素・全りん
Portable water quality meter (portable soul size, capable of outdoor measurement) Portable water quality meter (portable soul size, capable of outdoor measurement)
Dissolved oxygen meters, optical and membrane types available in various selections! Dissolved oxygen meters, optical and membrane types available in various selections!
Electric conductivity meters available in tabletop, portable, and installed (industrial) types. Electric conductivity meters available in tabletop, portable, and installed (industrial) types.
Resistance meter Resistance meter
Electromagnetic density meter Electromagnetic density meter
Turbidity meter Turbidity meter
Residual chlorine meter Residual chlorine meter
Kemio Heavy Metals Kemio Heavy Metals
Ion chromatography Ion chromatography
Multi-parameter water quality meter Multi-parameter water quality meter
Automatic titration device Automatic titration device
Salt content analysis Salt content analysis
Sugar analysis Sugar analysis
Water quality meter for tap water: residual chlorine, turbidity, for water quality management of water supply facilities. Water quality meter for tap water: residual chlorine, turbidity, for water quality management of water supply facilities.
SS calculation SS calculation
Total Nitrogen / Total Phosphorus / COD Meter Total Nitrogen / Total Phosphorus / COD Meter
Oil film detector Oil film detector
Environmental water quality analysis equipment Environmental water quality analysis equipment
Carbon dioxide concentration meter Carbon dioxide concentration meter
Resistance

Resistance meter

This is an introduction to the "resistivity meter" that we handle.

Panel-type resistivity meter "AQM-100A model"

Compact DIN96 size! Measurement near the hot water sterilization process of ultra-pure water is also possible.

The "AQM-100A model" is a compact and lightweight panel-mounted resistivity meter. It is capable of measuring near the thermal sterilization process of ultra-pure water, with transmission output (DC 4-20mA) and alarm output (2 circuit c contacts), and displays the sample water temperature. It measures the resistivity of ultra-pure water (0-20MΩ·cm) in semiconductor plants, with a wide temperature compensation range of 0-100℃. 【Features】 ■ Compact DIN96 size ■ Can connect two detectors (optional) ■ Equipped with cell constant adjustment function ■ Can set two alarm points ■ Transmission output is an insulated DC 4-20mA *For more details, please refer to the PDF materials or feel free to contact us.

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Panel-type resistivity meter (2 channels) 'AQM-210A model'

Measurement with a wide temperature compensation range of -5 to 120℃! Measurement is also possible near the hot water sterilization process of ultra-pure water.

The "AQM-210A model" is a compact and lightweight panel-mounted 2-channel resistivity meter. It measures the resistivity of ultra-pure water (0 to 20 MΩ·cm) in semiconductor plants with a wide temperature compensation range from -5 to 120°C. It displays transmission output (DC 4-20mA, 2 circuits) and alarm output (2 circuits with contact points), as well as the sample water temperature. 【Features】 ■ Compact DIN96 size ■ Measurement near the thermal sterilization process of ultra-pure water is also possible ■ Equipped with cell constant adjustment function ■ Standard RS-232C digital communication output *For more details, please refer to the PDF document or feel free to contact us.

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Industrial Electric Conductivity Detector "A5/A6 Type" "AR4/AR5 Type"

Pipe insertion type, immersion and drop-in type, liquid flow type, etc.! We have prepared many variations.

Introducing a two-electrode conductivity detector that can accommodate a wide measurement range from ultra-pure water used in semiconductors and power plants to river water and industrial wastewater. We offer various installation methods, including pipe insertion, immersion, and submersible types. There are four cell constants available: 0.01/cm, 0.1/cm, 1/cm, and 10/cm, allowing measurements from ultra-pure water below 0.2μS/cm to wastewater up to 10mS/cm (A5/A6 models). 【Features】 ■ The insulating seal materials for the inner and outer electrodes are made of glass hermetic and Teflon (PTFE), providing high heat and pressure resistance (A5/A6 models). ■ The connector box is integrated, making it easy to connect with the converter and detach the detector. ■ The compact and lightweight AR4/AR5 models for pure water have no restrictions on installation orientation. *For more details, please refer to the PDF materials or feel free to contact us.

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Easy-to-hold slim design "Portable Multi Water Quality Meter"

This is a portable water quality meter compatible with field measurements of pH, ORP, electrical conductivity, and dissolved oxygen!

This is a multi-type portable water quality meter that allows for the measurement of "pH," "ORP," "electrical conductivity," and "dissolved oxygen" through probe replacement. Available in a 2-channel type MM-42DP and a 1-channel type MM-41DP! The measurement of dissolved oxygen adopts an "optical method"! With a waterproof structure and backlight, it can be safely used in the field. ◎ You can view detailed specifications and more from the "PDF Download." If you are interested, please download the catalog to take a look. Additionally, you can download materials that clearly explain the measurement methods for pH, electrical conductivity, and dissolved oxygen.

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Tabletop Electric Conductivity Meter CM-41X

This is a basic type of electrical conductivity meter that can also operate on dry batteries.

The "CM-41X" electrical conductivity meter is a tabletop water quality meter that can measure electrical conductivity, electrical resistivity, salinity, TDS, and more. It is a basic type that can operate on four AA alkaline batteries, with a long battery life of up to approximately 1000 hours. Additionally, it can also be powered via a USB cable. ◎ You can view detailed specifications and more from the "PDF Download." If you are interested, please download the catalog to take a look.

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Tabletop Electric Conductivity Meter CM-42X

It is a tabletop electric conductivity meter equipped with a large touch panel.

The "CM-42X" electrical conductivity meter is a tabletop water quality meter that can measure electrical conductivity, electrical resistivity, salinity, concentration, TDS, and more. It features a large touch panel and has excellent operability with a clear screen display. Additionally, the display content is comprehensive, allowing for both vertical and horizontal display switching, as well as the ability to show graphs that clearly indicate the stability of measurement values. Maintenance information is also well-documented. ◎ You can view detailed specifications and more from the "PDF Download." If you are interested, please download the catalog to take a look.

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Simultaneous display of 2 items - measurable 'Tabletop Multi-Water Quality Meter' MM-43X

It is a 2-channel tabletop water quality meter that can measure pH, ORP, electrical conductivity, dissolved oxygen, ions, and more.

The tabletop multi-parameter water quality meter "MM-43X" is a desktop water quality meter capable of measuring pH, ORP, electrical conductivity, resistivity, dissolved oxygen, ions, and more. It can connect two sensors and display two parameters simultaneously. Additionally, it features a large touch panel with an easy-to-read screen display, enhancing usability. ◎ You can view detailed specifications and more from the "PDF Download." If you are interested, please download the catalog for more information.

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