DC Current Data Loggers for Accurate 4–20 mA Signal Monitoring

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Pacific Sensor Technologies supplies precision current data loggers for engineers, facilities teams and researchers across Australia. Whether you need to record a 4–20 mA process signal, monitor DC amperage on a battery or solar circuit, or capture combined voltage and current for a power audit, our range covers single-channel USB loggers through to wireless and multi-channel monitoring systems — with local stock, calibration and support.

A current data logger automatically records electrical current over time so you can analyse load, detect faults and verify performance without standing over a meter. Our loggers measure DC current and 4–20 mA loop signals (the standard for industrial sensors and transmitters), with selectable ranges from a few milliamps to tens of amps. Many models log current and voltage together to give true power and energy data for energy audits, solar and battery monitoring, and 3-phase installations.

Pacific Sensor Technologies supplies precision current data loggers for engineers, facilities teams and...

  • The MadgeTech CurrentX-16 is a 16-channel low-level DC current data logger and is available in three ranges: 30 mA, 160 mA, and 3 A.

    MadgeTech CurrentX | 4/8/12/16-Channel DC Current Data Logger

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    4, 8, 12 and 16-channel low-level DC current data…

    Price range: $ 1,912.50 through $ 4,711.61 Ex. GST
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  • The MadgeTech Titan S8 is an 8-channel, remote access data acquisition logger with a full-color, 5 inch touchscreen interface for real-time monitoring.

    MadgeTech Titan S8 | 8-Channel Touchscreen Data Logger

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    8-channel, data acquisition logger with 5″ touc…

    $ 3,567.86 Ex. GST
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  • MadgeTech Process101A is a compact 4-20mA data logger that measures and records low-level DC currents.

    MadgeTech Process101A | 4-20mA Data Logger

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    Compact, low level DC current data logger, Availa…

    $ 586.61 Ex. GST
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  • MadgeTech RFCurrent2000A wireless current data logger

    MadgeTech RFCurrent2000A | Wireless Current Data Logger

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    Wireless DC current data logger, available in 3 M…

    $ 882.50 Ex. GST
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  • COMET U6841 4-channel current data logger for 3x 0-20mA current inputs and 1x two-state input.

    COMET U6841 | 4-Channel Current Data Logger (3x 0-20mA + 1x Two-State Input)

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    Data logger for 3 current inputs 0-20mA and 1 two…

    $ 703.50 Ex. GST
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  • COMET U6841G IoT wireless data logger for 3 current inputs and two-state inputs, with built-in 4G modem.

    COMET U6841G | Current 4G Data Logger (3 x 0-20mA + 2 Two-State Inputs)

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    IoT Wireless Datalogger for 3 current inputs 0-20…

    $ 1,569.50 Ex. GST
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  • EFENTO 4-20 mA sensor interface NB-IoT

    EFENTO 4-20mA NB-IoT Sensor Interface

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    $ 345.91 Ex. GST
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  • Efento Bluetooth 4-20 mA sensor interface

    EFENTO Bluetooth 4-20mA Sensor Interface

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    $ 237.05 Ex. GST
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  • COMET MS6D 16 channel data logger.

    COMET MS6D | Ethernet Monitoring System — 16-Channel

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    Sixteen Channel Data Logger with Alarms

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  • COMET MS6R rack mount Sixteen Channel Data Logger with Alarms.

    COMET MS6R | Ethernet Monitoring System -16-Channels

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    Sixteen Channel Data Logger with Alarms

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  • COMET MS6-Rack Ethernet Monitoring System with 16-Channels, 19" Rack-Mount.

    COMET MS6-Rack | Ethernet Monitoring System – 16-Channel, 19″ Rack-Mount

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    Sixteen Channel Data Logger, Rack mount with Alar…

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  • COMET MS55D Sixteen Channel Data Logger with Alarms and configurable inputs and outputs.

    COMET MS55D | Ethernet Monitoring System — 16-Channel

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    Sixteen Channel Data Logger with Alarms

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  • COMET M1300 multilogger with 4 channels.

    COMET M1300 | Ethernet Current, Voltage & Pulse Data Logger

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    Ethernet Multilogger – universal datalogger…

    $ 2,145.00 Ex. GST
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  • COMET M1320 multilogger with 2 MiniDIN and 2 Terminals.

    COMET M1320 | Ethernet Multi-Channel Data Logger

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    Multilogger – universal 4 channel thermomet…

    $ 2,145.00 Ex. GST
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  • COMET M1322 Ethernet multi-logger to monitor temperature, humidity and CO2

    COMET M1322 | Ethernet Multi-Channel Data Logger with CO2

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    Ethernet Multilogger – thermo-hygro-CO2

    $ 2,509.50 Ex. GST
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  • COMET M1323 multi-logger to monitor temperature, humidity, pressure and CO2.

    COMET M1323 | Ethernet Multi-Channel Data Logger with Barometric Pressure & CO2

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    Multilogger – thermo-hygro-CO2-barom…

    $ 2,695.00 Ex. GST
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  • Choose by signal type (DC current, 4–20 mA, AC via clamp), channel count (single to 16-channel), and connectivity (USB download, Bluetooth, NB-IoT or wireless telemetry). We stock MadgeTech (Process101A, CurrentX, RFCurrent2000A, Titan S8), COMET (U6841 four-channel, M1300 series multi-loggers, MS-series monitoring systems) and EFENTO 4–20 mA sensor interfaces. Every logger ships with configuration software and a data report, and our team can help you match a logger to your sensor, range and sampling needs.

    Need help choosing?
    Contact our Australian support team on 1300 662 720 for a recommendation.

    Frequently Asked Questions

    What is a current data logger?

    A current data logger is a battery- or mains-powered device that automatically measures and records electrical current (amperage) at set intervals. It stores the readings in memory so you can download and graph current over hours, days or months — ideal for load monitoring, fault-finding, energy audits and validating equipment performance.

    What is a DC voltage and current data logger?

    It is a single device that records both DC voltage and DC current simultaneously, letting you calculate power (watts) and energy (watt-hours) directly. These are widely used for solar, battery and DC power-supply monitoring where you need the full electrical picture, not just one parameter.

    What does a 4–20 mA data logger do?

    4–20 mA is the standard analogue signal used by industrial sensors and transmitters (pressure, level, flow, temperature). A 4–20 mA data logger records that loop current over time, so you can trend the underlying process variable and verify your instrumentation is reading correctly. The MadgeTech Process101A and EFENTO sensor interfaces are popular choices.

    How do I choose the right current data logger?

    Match four things: (1) signal type — DC current, 4–20 mA loop, or AC via a clamp; (2) measurement range, from a few milliamps to tens of amps; (3) number of channels, single up to 16; and (4) connectivity — USB download, Bluetooth, NB-IoT or wireless telemetry. Our Australian team can recommend a model for your exact application.

    Can a current data logger measure power and energy?

    Yes. Loggers that record current and voltage together (or current plus a known supply voltage) can report power and accumulated energy. For whole-building or 3-phase energy monitoring, COMET multi-channel monitoring systems and multi-loggers are designed for the job.

    Do your current data loggers come with software?

    Every logger includes configuration and download software (and many offer cloud or app access). You set the sampling rate and ranges, deploy the logger, then download a time-stamped data report to CSV, PDF or your monitoring platform.

    What is the difference between a current logger and a clamp meter?

    A clamp meter gives an instantaneous reading; a current data logger records continuously and unattended, building a time history you can analyse later. Some loggers (e.g. MadgeTech RFCurrent2000A) use a clamp/CT to log AC current without breaking the circuit.

    Do you ship and support current data loggers across Australia?

    Yes. Pacific Sensor Technologies holds local stock, ships Australia-wide, and provides local calibration, configuration help and technical support — so you are not relying on overseas turnaround for advice or service.