Wireless current monitoring sensors

Measure energy consumption at a circuit, zone or machine level, in real time

Our wireless current sensors (CT) measure the alternating current (AC) and report the average of 5 measurements every 30 seconds.

The small, energy-harvesting devices use ultra-low power wireless and battery-less technology making them easy to install and very low maintenance. They simply clip around a cable and the wireless transmitter attaches outside the panel for reliable wireless data transmission. They can easily be fitted inside a machinery panel, distribution panel or other suitable location.


Wireless, self-powered current sensors

They simply clip around a cable and measure the electrical current, so there’s no interruption to the electrical supply


Reports current every 30 seconds

Sensors measure AC current (50Hz or 60Hz) and reports average of 5 measurements every 30 seconds


Access real-time data locally or in the cloud

Using our Smart Gateway, data is encrypted and sent locally or to your chosen cloud platform via MQTT


  • Sensors measure AC current (50Hz or 60Hz). Reports average of 5 measurements every 30 seconds
  • Single-channel (single-phase) clamps measure the electrical current flowing in a single cable, while three-channel (3-phase) clamps measure current in 3 individual cables. Normally you will find single-phase systems in, for instance, households and office buildings. In the industry and for heavier machines, three-phase electric power is typically used.
    • One channel measurement ranges:
      1A–60A (accuracy +/- 0.1A or 2%, whichever is greater)
      2A–200A (accuracy +/- 0.1A or 2.5%, whichever is greater)
    • Three channels measurement ranges:
      1A–60A (accuracy +/- 0.1A or 2%, whichever is greater)
      2A–200A (accuracy +/- 0.1A or 2.5%, whichever is greater)
      2A-600A (accuracy +/- 1A or 3%, whichever is greater)
  • Self-powered using ultra-low energy from the measured conductor, so there’s no need for batteries or wiring
  • Clamps simply clip around cables with no interruption to electrical supply. The wireless transmitter attaches outside the panel for reliable wireless data transmission
  • Transmit data wirelessly and securely – using AES-128 encryption – via EnOcean wireless protocol, which uses internationally approved, licence-free ISM bands
    • 868 MHz for Europe (RED)
    • 902 MHz for North America (FCC) and Canada (IC)
    • 928 MHz for Japan (ARIB specification)
  • EnOcean Equipment Profile (EEP): D2-32-00, D2-32-02
  • No recurring fees. Access the data through your chosen platform, without any additional costs from Presssac.
  • Manufactured in the UK to high-quality and high-safety specifications, they are subject to rigorous testing procedures.
  • Packaging unit: single

Download product sheet

If you’re looking to order over 100 sensors or have regular requirements of sensors, please contact us to discuss pricing options.


Wireless smart sensor and connected technology


Quick to install and set up


Ultra-low power, energy-harvesting


Secure licence-free transmission


Interoperable and scalable


Highest quality and compliance

Easily access and integrate real-time current sensor data

Our technology is system agnostic, the data from our sensors can be used in any way you need. There are different options to choose from, making it easy to get your data in the way that’s right for you.


Access your sensor data in a spreadsheet


Visualise sensor data using Node-RED


Integrate live data into any software or IoT platform


Feed sensor data into existing building management systems


Connect sensors directly to EnOcean controllers

Looking for a partner who can design and manufacture reliable, cost-effective sensors in high volume?


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