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 current and power data for an energy 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 with three 0-20mA current inputs and one dry contact input.

    COMET U6841 | 4-Channel Current Data Logger (3x 0-20mA + 1x Dry Contact 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 CO<sub>2</sub>

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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 & CO<sub>2</sub>

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    Multilogger – thermo-hygro-CO2-barom…

    $ 2,695.00 Ex. GST
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  • COMET M1321 Multi-logger to monitor temperature, humidity and pressure.

    COMET M1321 | Ethernet Multi-Channel Data Logger with Barometric Pressure

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    Multilogger – thermo-hygro-barometer with 2 Min…

    $ 2,317.50 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.

    Power & Electrical Data Loggers

    Beyond single-signal current logging, our power and electrical data loggers capture how equipment, circuits and installations perform over time. Multi-channel units — the COMET M1300-series MultiLoggers, MS monitoring systems and the MadgeTech Titan S8 — record current across several channels, and when voltage is logged alongside they let you trend electrical power and energy for audits and load studies. For DC systems, a DC power data logger set-up suits solar arrays, battery banks and DC supplies, while a compact power datalogger handles portable spot checks.

    As a broader electrical data logger, the range covers current, power and 4–20 mA signals for switchboards, plant and remote monitoring. Everything is held as Australian stock with local calibration and support — so you get a power data loggers in Australia without overseas lead times, with electrical data loggers for sale online and expert help choosing the right model.

    Amperage Data Loggers

    An amperage data logger records electrical current (amps) at set intervals so you can trend load, spot faults and verify performance unattended. Our range measures from a few milliamps up to higher amperage ranges, with models such as the MadgeTech CurrentX and the wireless RFCurrent2000A. Whether you call it an amp logger, a current datalogger or a digital logger for current, you get a time-stamped record you can export to CSV or PDF and share.

    USB Current Data Loggers

    A current data logger USB model is the simplest way to capture readings: connect the logger to your PC over USB, set the range and sampling rate, deploy it, then download the data. USB loggers like the MadgeTech Process101A suit portable DC logging jobs and periodic audits where you don’t need live telemetry. For always-on sites, step up to our wireless, Bluetooth or NB-IoT models.

    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 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's the difference between a current, power and electrical data logger?

    The difference is mainly what they measure. A current data logger records electrical current (amps) — the core of this range. A power data logger captures current alongside voltage so it can report power (watts) and energy (watt-hours), which our multi-channel COMET and MadgeTech systems handle. "Electrical data logger" is simply the umbrella term covering current, power and 4–20 mA signal logging. Choose by the parameter you need to record and the number of channels.

    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.

    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.