A complete ECG solution from recording to reporting

ECG reports delivered


Hours of ECG analysed


HCP's* using Cortrium


*Health Care Professionals

Product overview

Discover what Cortrium offers

We offer both hardware C3⁺, Apex software and ECG reports. Choose how to purchase your first monitor so it fits your preferences, and order verified high quality ECG reports providing accurate information and detection of arrhythmias supporting your diagnosis and decisions.

Set up the patient

Set up the patient in Cortrium Apex software, place C3⁺ and electrodes on the patient

Recording and upload

Record your patients and upload data to our software. It is easy and simple to use

Download report

Order your ECG reports. You only pay for the reports you need

Cablefree C3⁺ monitor

The C3+ offers you a quick and easy way of detecting arrhythmias and offers your patients a frictionless ECG recording experience. The C3⁺ three channel recording is of high quality, and fits both men and women – and has up to 7 days of battery life. In addition it is compatible with multiple third-party analysis software solutions.

  • Monitor size is 85 x 80 x 15 mm and weights only 32 grams
  • Cablefree and reusable after upload of previous data
  • Can be used with standard electrodes


Type of ECG recorder: Holter, Ambulatory ECG
Channels: 3
Wear time: Up to 7 days
Recording format: Continuous
Charging: Rechargeable through micro USB
Power requirement: Lithium Polymer, 3.7V, 520 mAh
Dimensions: 85 x 80 x 15 mm
Weight: 32 grams
Sampling rate: 256 Hz
Input Impedance: 10 Mohm
Resolution: 24 bit
Performance standard: Design verification IEC 60601-2-47
Safety standard: IEC 60601-1 Basic Safety & Essential Performance IEC 60601-2-47


Medicinal Substances: N/A
Tissue: N/A
Body fluids contacted by device: N/A
Type of contact to intact skin: Non-invasive
Duration of skin contact: Up to 7 days continued contact
Mucosal membrane contact: N/A
Sterile or non-sterile: Non-sterile
Biological compatibility: ISO 10993-5 & ISO 10993-10


Medical purpose: Ambulatory ECG
Single use / reusable: Reusable/Rechargeable Monitor
Recording standard: Holter
Recording format: Continuous
Intended placement: Midsternal line
Recording period: Up to 7 days on a single charge


TÜV SÜD: Regulation (EU) 2017/745 (MDR), Article 97

Download documentation


CE certification: CE 0123

Download documentation


ISO certification: ISO 13485:2016

Download documentation

Reliable, verified reports

Cortrium ECG reports are checked and verified by our ECG analysis team, which is our Quality Control (QC) team. This means high quality ECG reports with detected arrhythmias – to support healthcare professionals to make a quick and accurate diagnosis for their patients.

  • Our Quality Control Team consists of cardiology specialists
  • All ECG reports are verified by at least one cardiology specialist
  • Detection of several arrhythmias.

Add-on features for reports

When ordering your ECG reports you also get the flexibility to include add-on features to each of your reports:

  • Heart Rate Variability as a dedicated analysis page in your report
  • AV block detection as an analysis of the AV block events in the recording
  • Fast Track when you need your ECG report delivered more quickly

Easy to work with

3 simple steps. It is as easy as that.

Set up the patient

Set up the patient in the Cortrium Apex software. Shave the chest if required. Prepare and place C3⁺ and the electrodes on the patient.

Recording and upload

Transfer and upload of patient data in the Cortrium Apex software.

Download report

Download your report – it is that easy.


Do you need help? Find answers in our FAQ right here.

Already a customer?

The C3⁺ has a recording capacity of up to 7 days on a fully charged battery.

After the 2-year warranty expired, Cortrium will provide technical and general service for up to 3 years.

You can use alcohol swabs / cotton fleece (normal practice supplies, 70% isopropyl alcohol, e.g. ALKOTIP to clean the C3⁺. 

Already a customer?


Until our final MDR approval is in place, we kindly refer you to this link, and if any further questions kindly contact us.

Get in touch.

Get pricing details, request product information or ask any question. Our Customer Care team will support you.

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