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Established in 1935, HIOKI E E CORPORATION  has grown to become a world leader in providing consistent delivery of test and measuring instruments through advanced design, manufacturing, sales and services. By offering over 200 main products characterized by safety and quality while meeting an expansive range of applications, we aim to contribute to the efficiency and value of our customers’ work in research and development, production and electrical maintenance.


HIOKI is used for testing of electronic circuit boards and boards with embedded active and passive devices, development of transport-related equipment and monitoring to detect equipment malfunctions, testing of electronic components and evaluation of the quality of energy-saving equipment and power supplies and maintenance and inspection of electrical work and equipment.HIOKI E E CORPORATION Electrical measuring instruments, known as the “mother tools” of industry, play an essential role in research and development, manufacturing, maintenance, and service. It comprise four product groups: automatic test equipment, data recording equipment, electronic measuring instruments, and field measuring instruments used in a broad range of industries and fields, from maintenance and inspection of electrical work and equipment to testing of electronic components used in smart phones and computers and development of electric vehicles and solar power generation technologies.


HIOKI Power Quality Analyzers (PQA); Insulation Testing; Data Acquisition Recorders; Power Demand Meters; Data Loggers; AM Meters; Volt Meters; Clamp-On; Digital Multimeters; Meters; Testers; Field Use Measurement Instruments; Electronic Measurement Instruments; Recorders and Automatic Test Equipment.                           download (8)

General Catalog: Electrical Measuring Instruments 2018 (64.5MB)

Short Form Catalog

Catalog: Short Form Catalog (4.7MB)

Catalog: 2018 Field Measuring Instruments (43.5MB)

Hioki CLAMP METER Series Catalog

Hioki Clamp Meter Series Catalog

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    • Noise reduction technology improves noise resistance
    • Screen and audio*2 guidance simplifies measurement
    • Measurement data is linked to site information and saved, reducing management man-hours
    • A variety of measurement data can be centrally managed using Hioki’s GENNECT Cross app*3
    • New protector delivers better ergonomic hold and durability in the field.
    • Instantaneously diagnose battery degradation (PASS, WARNING, FAIL) by measuring internal resistance and voltage*1
    •  Battery measurement can be performed while the battery is connected to its host device, without taking it offline
    • Measure and save data in as fast as 2 seconds, a 60% improvement from the legacy 3554


  • 3-Channel AC/DC Power Meter for Single-Phase to 3P4W Equipment such as Motors, Inverters, Power Conditioners, and Power Supplies

    • Voltage/current/power basic accuracy of ±0.1% *
    • Direct input up to 1000 V AC/DC / 65 A
    • Harmonic measurement as standard feature, IEC61000-4-7 compliant
    • Little instrument loss, even with large currents. DCCT input with an input resistance of 1 mΩ or less.
    • Power factor effect of ±0.1% f.s. delivers highly accurate measurements even for no-load testing of transformers with a low power factor
    • Measurement of multiple connections in the optimal range for each due to independent ranges for each channel
    • Measure up to 5000 A AC with optional current sensor


    • Compliant with a multitude of standards
    • Constant-current testing (max. 31.0 A) with feedback control
    • [ SOFT START ] function
    • Fluorescent tube display (VFD)
    • Test data count function
    • Setting value store function
    • Light weight and compact dimensions


    • Voltage Control from a PC
    • Standards-Based Testing
    • Settable Ramp Up/Down Test Voltage Timing
    • Test Status Read/Write
    • Pass Hold Function (0: No Hold, 1: Hold)
    • Insulation Resistance Test End Mode
    • “START” Interface Command
    • Electrical Discharge Function
    • Insulation Resistance Measurement Range
    • Maximum 32-Channel Multi-Point Testing
    • Simultaneous Protective Ground Continuity Testing


    • Uninterrupted polarity switching function
    • Safety conductor current measurement function
    • Automatic measurement functionality
    • 110% voltage application jack
    • Circuit breaker for device under measurement
    • Save measurement data for 100 devices
    • Improved test reliability
    • Simple, interactive operation
    • Ability to store up to 30 sets of measurement conditions


  • High-speed 20MS/s 32-channel Fully-isolated Memory Recorder Provides Simultaneous Data Acquisition Over 32 Analog + 32 Logic Channels

    • Generate and record waveforms with a single unit
    • Output previously recorded problematic waveforms and apply to devices under test to simulate potential issues
    • 32 analog + 32 logic channels to 28 analog + 64 logic channels
    • High-speed sampling up to 20MS/s with fully isolated inputs
    • Safe measurement with all isolated analog inputs
    • Large capacity memory of total 512M-words
    • Measure various system signals from high voltage to ultra low voltage simultaneously


    • Measure high-voltage battery packs up to 1000V
    • Production line testing of high-voltage battery packs for EV, PHEV
    • 0.1 μΩ to 3000 Ω internal resistance range (pack total resistance, bus bar resistance)
    • Spark discharge reduction function
    • Analog output function
    • Optional measurement probe available for 1000 V and high-voltage battery packs

    Model No. (Order Code)


    Note: Measurement leads are not included. Purchase the appropriate lead option for your application separately. The male (system side) of the EXT I/O connector is also available. Please inquire with your Hioki distributor.

    Guarantee3yearsRS232C USB2CE
    • High-speed 200 MS/s isolated testing (with High Speed Analog Unit U8976Ax8)
    • Simultaneously measure up to 32 analog channels (with 4ch Analog Unit U8975x8)
    • Real-time saving of data of all 32 ch at 1 MS/s (with SSD Unit U8332)
    • Highly-responsive touchscreen
    • Memory Concierge: Easily search for the waveform you want to see with the waveform search function
    • Faster save times (1/10th the time required by legacy models)
    • Real-time digital filter calculation

    Model No. (Order Code)

    MR6000 Main unit only, input modules up to 8 units
    MR6000-01 Built-in real-time waveform calculation and other functionality

    Note: Main unit MR6000/MR6000-01 cannot operate alone. You must install one or more optional input modules in the unit.

    Guarantee3years LAN  USB2 SDCE
    • Measure the fundamental waveform component using the average rectified method
    • Expanded -25 °C to 65 °C operating temperature range
    • Connect the CT6280 flexible sensor to measure up to 4199 A in thick or paired wires
    • Drop proof design withstands drop from a height of 1 meter

    Guarantee3years  CE  DROPPROOF

    • 5-range testing voltage of 50 V/100 MΩ to 1000 V/4000 MΩ
    • Stable & medium-speed digital readings, 0.8 second response time of PASS/ FAIL decisions
    • Drop proof onto concrete from 1m (3.28 feet)
    • Bright LED, luminous LCD, test lead with bright LED lamp to illuminate near hand (Also available in the IR4056-21)
    • Continuity check via 200 mA testing
    • Built in AC/DC voltage meter, useful for testing solar power generation systems and electric vehicles

    Guarantee3years  CEDROPPROOF

    • Maximum safety in the field by absolutely preventing short-circuit accidents with fused measurement terminals and current-limiting resistor
    • ±0.3% DC V basic accuracy, wide 40 Hz to 1 kHz AC V frequency characteristics
    • Low-pass filter (100 Hz/ 500 Hz) cuts high harmonics (when measuring inverter fundamental waveforms)
    • Connect to PC with USB communication function (optional)
    • Broad -25°C (-13°F) to 65°C (149°F) operating temperature range CAT IV 600 V, CAT III 1000 V

    予備  Guarantee3years  USB2  TrueRMS  CE DROPPROOF

  • On Measurement Spots with Two-Beam Laser Marker, Ideal for HVAC Applications

    • Pistol design with easy-to-see display
    • A full menu of basic measuring functions
    • Easily test in difficult locations, moving objects or where there is danger of electric shock


    • Top “primary supply level” safety class rating for voltage detectors
    • CAT IV 1000 V design meets CE Mark qualifications
    • Continuously indicate battery status with green indicator lamp
    • Both visual and audible voltage detection indication
    • Automatic power switching prevents battery discharge

    Guarantee3years  CE

    • Simply clip clamps onto wire insulation
    • Green LED arrow clearly shows phase direction, perfect for visual reports
    • Rotating LED indicator shows the phase sequence for a 3-phase power supply at a glance
    • Intermittent beeps signal positive phase; continuous tone signals reverse phase
    • Magnetic base allows the instrument to be secured on a distribution panel

    Guarantee3years  CE

  • DC, 0.5 Hz to 200 kHz, 3-phase 4-wire, High Precision Power Analyzer for Motor and Inverter Efficiency Analysis

    Model No. (Order Code)

    PW3390-02 D/A output
    PW3390-03 D/A output, motor analysis

    Note: PW3390 by itself does not support current and power measurements. Optional current sensor and voltage cord are necessary to measure current or power parameters. Specify inclusion of Motor analysis & D/A output upon order for factory installation. These options cannot be changed or added after delivery.


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