HIOKI Data Logger & Recorder Modules
Build your DAQ system around your needs
HIOKI’s wide range of measurement modules allow modular Data Loggers and Memory Recorders to be configured precisely for your specific maintenance and service tasks. The possibility to combine different modules enables the acquisition of both electrical and physical signals with flexible channel counts and signal combinations with a single DAQ system.
The HIOKI module portfolio covers a wide range of signal types and requirements, including current measurement and high-speed signal recording, strain measurement, temperature and heat-flow monitoring, as well as acceleration, vibration analysis and CAN in and output. For Memory Recorders, the range also includes output modules for signal generation and simulation in addition to input modules.
40 Products
8966
HIOKI 8966 - Analog Unit
The 8966 Analog Unit is a 2-channel voltage input module for the memory recorders MR6000, MR6000-01, MR8847A, MR8848, MR8827, MR8740, MR8741 and MR8740T. It expands these instruments with two electrically isolated voltage input channels and is designed for high-speed, multi-channel measurements in development, testing and analysis applications. With a maximum sampling rate of up to 20 MS/s and a frequency bandwidth of DC to 5 MHz (–3 dB), the module is suited for capturing fast signal transitions and transient events in power electronics, control systems and general waveform analysis.
Multiple measurement ranges up to 400 V DC enable flexible integration into various measurement environments. Channel-to-channel isolation allows safe parallel measurements at different potentials.Typical applications include high-speed voltage measurement, transient waveform capture, signal integrity analysis and validation of analog and control circuits.Technical Specifications2-channel isolated voltage inputInput connector: insulated BNCA/D resolution: 12-bitMaximum sampling rate: 20 MS/sFrequency bandwidth: DC to 5 MHz (–3 dB) Measurement accuracy: ±0.5% of full scaleMeasurement range: 5 mV to 20 V/div (12 ranges)Maximum allowable input: 400 V DC Compatible memory recorders: MR6000MR6000-01 MR8848MR8847AMR8827MR8740MR8741MR8740T
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8967
HIOKI 8967 - Temp Unit
The 8967 Temp Unit is a 2-channel temperature input module for the memory recorders MR6000, MR6000-01, MR8847A, MR8848, MR8827, MR8740, MR8741 and MR8740T. It expands these instruments with two thermocouple measurement channels and is designed for precise temperature monitoring in laboratory, development and industrial measurement applications. The module supports a wide range of thermocouple types including K, J, E, T, N, R, S, B and W, enabling flexible temperature measurements across various environments and applications. Reference junction compensation can be configured for internal or external operation, ensuring reliable temperature measurements under different installation conditions. Included two ferrite clamps help suppress high-frequency noise on thermocouple leads and improve measurement stability in electrically noisy environments. Typical applications include thermal testing, temperature monitoring in electronic systems, environmental testing and long-term temperature recording in research and development.Technical Specifications 2-channel thermocouple temperature input Supported thermocouple types: K, J, E, T, N, R, S, B, W Reference junction compensation: internal or external Data refresh rate: Fast approx. 1.2 ms / Normal approx. 100 ms / Slow approx. 500 ms Input resistance: ≥ 5 MΩ Maximum rated voltage to earth: 300 V AC/DC Compatible memory recorders MR6000MR6000-01MR8848MR8847MR8827MR8740MR8741MR8740T
.jpg "HIOKI 8968 - High Resolution Unit")
8968
HIOKI 8968 - High Resolution Unit
The 8968 High Resolution Unit is a 2-channel high-resolution voltage input module for the memory recorders MR6000, MR6000-01, MR8847A, MR8848, MR8827 and MR8740T. It expands the recorder with two electrically isolated voltage input channels optimized for precise and stable signal acquisition. The module features 16-bit A/D conversion and supports simultaneous sampling on both channels at up to 1 MS/s. The higher amplitude resolution, combined with the sampling rate, enables more detailed analysis of signal changes in both amplitude and time domains compared to standard analog input modules.
With a frequency bandwidth of DC to 100 kHz (–3 dB), the unit is designed for detailed waveform analysis where high resolution is more critical than maximum speed. Twelve measurement ranges from 5 mV/div to 20 V/div allow accurate measurement of low-level signals as well as higher voltage inputs. The maximum allowable input voltage is 400 V DC between input terminals, with isolation up to 300 V AC/DC to ground. Typical applications include high-accuracy voltage measurement, analysis of low-level signals, evaluation of power supply stability, ripple and noise analysis, and detailed waveform analysis in research and development environments.Technical Specifications 2-channel isolated voltage input Input connector: insulated BNCInput impedance: 1 MΩ / 30 pF A/D resolution: 16-bitMaximum sampling rate: 1 MS/s (simultaneous sampling) Frequency bandwidth: DC to 100 kHz (–3 dB) Measurement accuracy: ±0.3% of full scaleMeasurement range: 5 mV/div to 20 V/div (12 ranges) Maximum allowable input voltage: 400 V DC Isolation to ground: 300 V AC/DC Compatible memory recordersMR6000MR6000-01MR8848MR8847AMR8827MR8740MR8741MR8740T
.jpg "HIOKI 8970 - Freq Unit")
8970
HIOKI 8970 - Freq Unit
The 8970 Freq Unit is a 2-channel frequency and pulse measurement module for the memory recorders MR6000, MR6000-01, MR8847A, MR8848, MR8827, MR8740, MR8741 and MR8740T. It enables accurate measurement of frequency, rotational speed (RPM), pulse width and duty ratio via two electrically isolated input channels. With a measurement range for pulse and frequency signals from very low frequencies up to 100 kHz, the module supports reliable acquisition of repetitive and pulse-based signals. In addition to frequency and RPM measurement, integration and pulse counting functions allow evaluation of accumulated events such as total rotations or pulses from flow meters, supporting detailed system analysis.
The module also supports encoder signal measurement, allowing evaluation of rotational speed and position from incremental encoder outputs. A dedicated power frequency measurement mode enables precise monitoring of 50 Hz, 60 Hz and 400 Hz power systems.
Isolation up to 300 V AC/DC to ground allows safe operation in electrically demanding environments. Flexible trigger settings ensure stable and reproducible measurements.Typical applications include high-accuracy voltage measurement, analysis of low-level signals, evaluation of power supply stability, ripple and noise analysis, and detailed waveform analysis in research and development environments.Technical Specifications2-channel isolated frequency and pulse input Input connector: insulated BNC Input impedance: 1 MΩ / 30 pFFrequency mode range: DC to 100 kHz (minimum pulse width 2 µs) Frequency accuracy: ±0.1 % f.s. Measurement functions: frequency, RPM, pulse width, duty ratio, integration, pulse counting Maximum rated voltage to earth: 300 V AC/DCCompatible memory recordersMR6000MR6000-01MR8848MR8847AMR8827MR8740MR8741MR8740T
8971
HIOKI 8971 - Current Unit
Typical ApplicationsInclude motor current analysisInverter testingPower electronics development Investigation of switching and load currents Technical Specifications 2-channel current measurement input for optional current sensors Input connector: PL23 sensor connector (via conversion cable 9318) Input impedance: 1 MΩ A/D resolution: 12-bit Highest sampling rate: 1 MS/s (simultaneous sampling across 2 channels) Frequency characteristics: DC to 100 kHz (–3 dB) Measurement accuracy: ±0.65% f.s. RMS accuracy: ±1% f.s. (DC, 30 Hz to 1 kHz), ±3% f.s. (1 kHz to 10 kHz)Maximum rated voltage to earth: 300 V AC/DCThe 8971 Current Unit is a 2-channel current measurement module for the memory recorders MR6000, MR6000-01, MR8847A, MR8848, MR8827, MR8740 and MR8740T. It enables precise acquisition of current waveforms using compatible Hioki current sensors connected to dedicated sensor inputs.The module supports simultaneous sampling of up to 1 MS/s across two channels and uses 12-bit A/D conversion for accurate waveform recording. With a frequency bandwidth of DC to 100 kHz (–3 dB), it is suitable for detailed current analysis in power electronics, inverter systems and industrial drive applications.Measurement ranges depend on the connected current sensor and selectable scaling settings. Typical full-scale ranges span from 2 A up to 2000 A depending on the sensor model used. Supported current sensors include: 9272-05, CT6841A, CT6843A, CT6844A, CT6845A, CT6846A, CT6862-05, CT6863-05, CT6872, CT6872-01, CT6873, CT6873-01, CT6875A, CT6875A-1, CT6876A, CT6876A-1, CT6904A, CT6904A-1, CT6904A-2 and CT6904A-3. Sensors are connected via the supplied Conversion Cable 9318. Depending on the sensor type, additional adapters such as CT9901 or CT9900 may be required. Compatible memory recordersMR6000MR6000-01MR8847A MR8848MR8827MR8740MR8740T
8972
HIOKI 8972 - DC/RMS Unit
The 8972 DC/RMS Unit is a 2-channel DC and RMS voltage measurement module for the memory recorders MR6000, MR6000-01, MR8740T, MR8740, MR8741, MR8827, MR8847A and MR8848. It enables both instantaneous waveform measurement and RMS evaluation via two electrically isolated input channels.The module features a wide-bandwidth RMS measurement circuit that supports DC and AC signals from around 30 Hz up to 100 kHz without requiring external signal conditioning. With a measurement range from 5 mV to 20 V/div and 12 selectable ranges, it can capture everything from small signal details to higher voltages. Simultaneous sampling at up to 1 MS/s on both channels allows detailed waveform and RMS analysis.The high isolation rating of up to 300 V AC/DC to ground and maximum allowable input voltage of 400 V DC between input terminals ensures safe operation even in demanding electrical environments. RMS amplitude accuracy supports precise evaluation of both DC and AC components.Typical applications include comprehensive DC and AC voltage monitoring, RMS waveform analysis, verification of PWM and switching signals, and performance evaluation in power electronics and test bench environments.Technical SpecificationsRMS measurement bandwidth: DC, 30 Hz to 100 kHzMeasurement range: 5 mV/div to 20 V/div (12 ranges) Maximum sampling rate: up to 1 MS/s RMS amplitude accuracy: ±1 % f.s. Input connectors: Isolated BNC connector (input impedance 1 MΩ, input capacitance 30 pF) Low-pass filter: 5 Hz, 50 Hz, 500 Hz, 5 kHz, 100 kHz Maximum rated voltage to ground: 300 V AC/DC (CAT II)Maximum allowable input voltage between terminals: 400 V DCCompatible memory recordersMR6000MR6000-01MR8740TMR8740MR8741MR8827MR8847AMR8848
8973
HIOKI 8973 - Logic Unit
The 8973 Logic Unit is a logic signal measurement module for the memory recorders MR6000, MR6000-01, MR8740T, MR8740, MR8741, MR8827, MR8847A and MR8848. It enables acquisition and analysis of digital logic signals using HIOKI logic probes. The module provides four probe inputs. With HIOKI logic probes providing four measurement channels per probe, up to 16 logic channels can be realized per module.Multiple logic units can be installed simultaneously to expand the number of digital channels in the measurement system. The module uses mini-DIN connectors for HIOKI logic probes (sold separately), allowing simultaneous monitoring of multiple digital signals. The number of 8973 modules that can be connected depends on the memory recorder model: MR8827 supports up to 2 units, MR8848 up to 3 units, MR6000 up to 8 units, and MR8740T up to 3 units.Typical applications include digital timing analysis, monitoring of control logic, relay status tracking, and validation of embedded and industrial control systems.Technical Specifications Probe inputs: 4 (mini-DIN)Logic channels: 16 (4 probe inputs × 4 channels per logic probe) Compatible probes: HIOKI logic probes 9320-01, 9320-02 and 9320-03 (sold separately)Compatible memory recordersMR6000MR6000-01MR8740TMR8740MR8741MR8827MR8847AMR8848
LR8531
HIOKI LR8531 - 15-ch wireless logger module for voltage, temperature and resistance, 10 ms
15-channel wireless interface module for LR8450-01 Data Logger, update interval 10 ms, for DC voltage, temperature, humidity and resistance, 16 bits, 100 V direct input, 300 V isolation, AC or battery operation, spring-cage terminal block
LR8534
HIOKI LR8534 - 5-ch wireless logger module for strain gauges, 1 ms
5-channel wireless interface module for LR8450-01 Data Logger, update interval 1 ms, for strain gauges, 16 bits, 1/2/4-gauge method, AC or battery operation, spring-cage terminal block
.jpg "HIOKI MR8990 - Digital Voltmeter Unit")
MR8990
HIOKI MR8990 - Digital Voltmeter Unit
The MR8990 Digital Voltmeter Unit is a 2-channel, 6.5-digit high-precision DC voltage measurement module for the memory recorders MR6000, MR6000-01, MR8740T, MR8740, MR8741, MR8827, MR8847A and MR8848. It enables high-accuracy DC voltage analysis in multi-channel recorder systems for industrial, energy and development applications. With a resolution of up to 0.1 µV and a sampling rate of up to 500 S/s, the unit enables highly stable DC voltage measurement across five selectable ranges from 100 mV to 1000 V full scale. Standard 4 mm banana input connectors allow robust and flexible connection in laboratory and validation setups.Typical applications include high-resolution DC monitoring, battery characterization, power rail stability analysis, calibration verification and long-term reference voltage measurement.Technical Specifications Channels / input: 2 (isolated, 4 mm banana) Measurement type: DC voltage, 6.5 digits Measurement range: 100 mV to 1000 V full scale (5 ranges) Resolution: up to 0.1 µVSampling rate: up to 500 S/sInput impedance: 100 MΩ (100 mV–10 V ranges), otherwise 10 MΩ Voltage limits: 500 V DC input; 300 V AC/DC to ground Basic accuracy: ±0.01% rdg. ±0.0025% f.s. (1000 mV range)Compatible memory recorders MR6000MR6000-01MR8740TMR8740MR8741MR8827MR8847AMR8848
U8550
HIOKI U8550 - 15-ch logger module for voltage and temperature, 10 ms
15-channel plug-in interface module for the LR8450 Data Logger Series, update interval 10 ms, for DC voltage, temperature, and humidity, 16 bits, 100 V direct input, 300 V isolation to earth and between channels
U8552
HIOKI U8552 - 30-ch logger module for voltage and temperature, 10 ms
30-channel plug-in interface module for the LR8450 Data Logger Series, update interval up
to 10 ms, for DC voltage, temperature, and humidity, 16 bits, 100 V direct input, 300 V
isolation to earth and between channels, spring-cage terminal block