TOA KEIKI is a Japanese precision instrument manufacturing company established in 1904, specializing in various types of thermometers. The company aims to create 'standards' for measurement, focusing on high-precision glass thermometers and mercury-free thermometers. It possesses the capability to provide a wide range of solutions, from national metrological standard products to industrial sites and occupational safety fields. The company particularly concentrates on developing mercury-free technologies in response to environmental regulations and products that meet the latest safety standards. With a long history and technological expertise, it is a specialized company supplying highly reliable measuring equipment.TOAKEIKIisaJapaneseprecisioninstrumentmanufacturingcompanyestablishedin1904,specializinginvarioustypesofthermometers.Thecompanyaimstocreate'standards'formeasurement,focusingonhigh-precisionglassthermometersandmercury-freethermometers.Itpossessesthecapabilitytoprovideawiderangeofsolutions,fromnationalmetrologicalstandardproductstoindustrialsitesandoccupationalsafetyfields.Thecompanyparticularlyconcentratesondevelopingmercury-freetechnologiesinresponsetoenvironmentalregulationsandproductsthatmeetthelatestsafetystandards.Withalonghistoryandtechnologicalexpertise,itisaspecializedcompanysupplyinghighlyreliablemeasuringequipment.
Key Products/TechnologiesKeyProducts/Technologies
The Water Triple Point Cell is a national metrological standard product and a primary thermometer, a highly precise Japanese-made item. This product represents a core technology providing fundamental reference points for temperature measurement.TheWaterTriplePointCellisanationalmetrologicalstandardproductandaprimarythermometer,ahighlypreciseJapanese-madeitem.Thisproductrepresentsacoretechnologyprovidingfundamentalreferencepointsfortemperaturemeasurement.
The Neo Blue Standard Thermometer, available in double-tube and rod types, is a high-precision mercury-free thermometer. It serves as a safe alternative in environments where mercury use is restricted, supporting JCSS calibration, general calibration, recalibration, and traceability documentation.TheNeoBlueStandardThermometer,availableindouble-tubeandrodtypes,isahigh-precisionmercury-freethermometer.Itservesasasafealternativeinenvironmentswheremercuryuseisrestricted,supportingJCSScalibration,generalcalibration,recalibration,andtraceabilitydocumentation.
The Magnet-attached Black Globe Type Heatstroke Meter is a product developed in line with the revised Industrial Safety and Health Regulations (June 2025). It visualizes heatstroke risk to assist in workplace safety management and complies with JIS B 7922:2023 Class 2 standards.TheMagnet-attachedBlackGlobeTypeHeatstrokeMeterisaproductdevelopedinlinewiththerevisedIndustrialSafetyandHealthRegulations(June2025).ItvisualizesheatstrokerisktoassistinworkplacesafetymanagementandcomplieswithJISB7922:2023Class2standards.
High-precision Digital Standard Thermometer Standard Thermo and High-Grade models are digital high-precision thermometers supporting JCSS calibration and traceability documentation. These products offer solutions for precise temperature measurement across various industrial sectors.High-precisionDigitalStandardThermometerStandardThermoandHigh-Grademodelsaredigitalhigh-precisionthermometerssupportingJCSScalibrationandtraceabilitydocumentation.Theseproductsoffersolutionsforprecisetemperaturemeasurementacrossvariousindustrialsectors.
The Standard Thermo Sensor Group includes the standard sensor TOA-PTS150, which also ensures high reliability through JCSS calibration and traceability documentation. This technology provides various sensor options suitable for diverse environments.TheStandardThermoSensorGroupincludesthestandardsensorTOA-PTS150,whichalsoensureshighreliabilitythroughJCSScalibrationandtraceabilitydocumentation.Thistechnologyprovidesvarioussensoroptionssuitablefordiverseenvironments.
Glass thermometers represent a core product line manufactured by the company since its establishment in 1904. The expertise in producing standard glass thermometers symbolizes the company's long-standing technological prowess.Glassthermometersrepresentacoreproductlinemanufacturedbythecompanysinceitsestablishmentin1904.Theexpertiseinproducingstandardglassthermometerssymbolizesthecompany'slong-standingtechnologicalprowess.
Core AdvantagesCoreAdvantages
Over 100 years of history and tradition signify the company's unique technological capabilities and accumulated know-how in the field of measurement. This is a crucial factor ensuring product reliability and precision.Over100yearsofhistoryandtraditionsignifythecompany'suniquetechnologicalcapabilitiesandaccumulatedknow-howinthefieldofmeasurement.Thisisacrucialfactorensuringproductreliabilityandprecision.
The ability to manufacture high-precision metrological standard products, including the national metrological standard Water Triple Point Cell, demonstrates the company's technological superiority. JCSS calibration and traceability documentation provide high credibility to customers.Theabilitytomanufacturehigh-precisionmetrologicalstandardproducts,includingthenationalmetrologicalstandardWaterTriplePointCell,demonstratesthecompany'stechnologicalsuperiority.JCSScalibrationandtraceabilitydocumentationprovidehighcredibilitytocustomers.
The high-precision mercury-free thermometer technology, proactively addressing mercury use regulations, showcases the company's capability to provide environmentally friendly and safe solutions. This is a significant competitive advantage in specific industrial sectors.Thehigh-precisionmercury-freethermometertechnology,proactivelyaddressingmercuryuseregulations,showcasesthecompany'scapabilitytoprovideenvironmentallyfriendlyandsafesolutions.Thisisasignificantcompetitiveadvantageinspecificindustrialsectors.
Providing a heatstroke meter compliant with JIS B 7922:2023 Class 2 in response to the June 2025 revision of industrial safety and health regulations proves the company's quick adaptability to market changes and regulatory compliance capabilities.ProvidingaheatstrokemetercompliantwithJISB7922:2023Class2inresponsetotheJune2025revisionofindustrialsafetyandhealthregulationsprovesthecompany'squickadaptabilitytomarketchangesandregulatorycompliancecapabilities.
All products are manufactured in the company's own factories in Japan, ensuring consistent high-quality products through a stringent quality control system. This contributes to increased customer satisfaction and product reliability.Allproductsaremanufacturedinthecompany'sownfactoriesinJapan,ensuringconsistenthigh-qualityproductsthroughastringentqualitycontrolsystem.Thiscontributestoincreasedcustomersatisfactionandproductreliability.
Target IndustriesTargetIndustries
Research and laboratory sectorsResearchandlaboratorysectors
Industrial sites (especially environments with mercury use restrictions)Industrialsites(especiallyenvironmentswithmercuryuserestrictions)
Occupational safety and health management fieldsOccupationalsafetyandhealthmanagementfields
National metrological standards and calibration institutionsNationalmetrologicalstandardsandcalibrationinstitutions
Major MarketsMajorMarkets
JapanJapan
Certifications/PatentsCertifications/Patents
JCSS Calibration Support (Calibration services based on Japanese Measurement Law)JCSSCalibrationSupport(CalibrationservicesbasedonJapaneseMeasurementLaw)
JIS B 7922:2023 Class 2 Compliant (for Magnet-attached Black Globe Type Heatstroke Meter)JISB7922:2023Class2Compliant(forMagnet-attachedBlackGlobeTypeHeatstrokeMeter)
Introduction
Location
Japan, 〒145-0066 Tokyo, Ota City, Minamiyukigaya, 4-chōme−3−19 東亜ビル
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Information
Japan, 〒145-0066 Tokyo, Ota City, Minamiyukigaya, 4-chōme−3−19 東亜ビル