QRS ECG Machines

Home/Products/QRS ECG Machines


Medilogic offers ready to use electrocardiographs complete with the ECG, electrodes, and Office Medic Software. The portability and ease of use with our products allows you to perform resting ECG anytime, anywhere.

The Universal ECG features accurate results, real-time graphical display and narrative interpretation. The Universal ECG saves you money by eliminating thermal paper and calibration and minimizing required maintenance.

Buy Now

The Universal ECG uses the Louvaine analysis program which was found to have the best total accuracy when compared to nine popular competing algorithms by cardiologists.

Control Patients
Ventricular Hypertrophy
Myocardial Infarction
Total Accuracy
Padova 89.8 61.3 47.1 62.0
Nagoya-Fukuda 89.3 42.6 63.7 65.6
IBM Medis 91.3 49.4 62.5 67.6
HP (Agilent) 93.5 51.0 64.5 69.3
Glasgow 94.0 51.0 67.7 69.7
GE (Marquette) 86.3 61.1 69.7 69.7
Means 97.1 42.5 67.2 69.8
Hannover 86.6 72.1 79.0 75.8
Louvaine (Louven) 91.5 67.0 82.1 77.3
8 Cardiologists Combined Scores 97.1 60.4 80.3 79.2

The numbers in the table above represent the percent correct diagnosis.
Red = Highest Score, Green = 2nd Highest Score, Blue = 3rd Highest Score

The Louvaine algorithm was also the best in correctly diagnosing myocardial infarction and the second best in diagnosing Ventricular Hypertrophy.

Incomparable Accuracy – The Universal ECG uses the Louvaine analysis program. The Louvaine algorithm had the best total accuracy of the 9 popular algorithms compared by cardiologists to a standardized database of ECG tracings.

Multiple Report Options – Office Medic offers multiple options for viewing the Universal ECG reports and they are transferable to PDF, JPEG, or TIFF formats.

  • 3×4 Simultaneous
  • 3×4 Sequential
  • 6×2 ECG
  • 6×1 ECG
  • Averaged Complexes
  • Measurements Report
  • Avg. Zoom Report
  • Zoom Report

Lightweight & Portable – The Universal ECG weighs less than 12 ounces and can easily be transported to new patient rooms, clinic locations or any off site location where an ECG needs to be performed. Also, no batteries are required for the Universal ECG because it draws its power from the computer (connected via USB port).

Why Perform Diagnostic ECG Tests? – ECG testing has increased the diagnosis of heart disease.  ECGs provide physicians a baseline to compare the health of a heart on a recurring basis.  They also help diagnose, monitor and treat patients with symptoms of heart health issues.

The Universal ECG comes equipped with everything you need to begin testing.

  •  Universal 12-Channel ECG
  •  QRS Resting ECG Tab Electrodes, 100
  •  Sure-Lock Snap & Tab Electrode Adapters, 10
  •  Lead Placement Guide
  •  Office Medic Software

Also included with the Universal ECG is a three-year warranty.

Hub Weight 250-335 grams (depending on cables)
Hub Dimensions 85 mm x 91 mm x 20 mm (3.3” x 3.6” x .8”)
Patient Leads Length Limb Leads: 1 meter
Chest Leads: 0.6 meter
PC Connection Length 1-3 meters USB A type Connector (USB version)
Patient Leads 12-Lead Cable (10 Patient Leads)
Case Material ABS Plastic
Electrode Connection 4 mm Banana plug with “snap” or “tab” connectors
Display & Operating Console Dependent on PC (Supplied by user)
Gain Sensitivity 5, 10, 20 mm/mV
Speed 12.5, 25 and 50 mm/s
Input Range ±6 mV
Acquisition Sample Rate 1000 samples/sec.

(Compressed to 500 Hz with peak picking and averaging algorithm)

Heart Rate Range 30 – 170 bpm
Frequency Response 0.05 – 175 Hz ±3dB
Defibrillation Protection Patient leads are isolated from system and operator, with 4kV protection
Common Mode Rejection -60dB (minimum)
Safety Standards Complies with AAMI EC11, EN60601-1, EN60601-2, EN60601-2-25
Leads Off Indicators Connection status for each lead is shown on Acquisition screen
Power Source PC, powered from USB interface
Supply Voltage 4-16 V DC
Supply Current < 17 mA DC
Permanent Filters High Pass: 0.05 Hz 1st order; Low Pass: 170 Hz 1st order

Baseline Wander: Baseline reset by adaptive zeroing

Notch filter

(Mains noise Rejection)

50 Hz 4th order Butterworth,

49.1 Hz – 50.9 Hz,

60 Hz 4th order Butterworth,

59.1 Hz – 60.9 Hz

Low Pass

(Muscle Artifact Filter)

35 Hz 4th order
Report Capabilities User Selectable Report Formats: (1) 3×4 Simultaneous;
(2) 3×4 Sequential; (3) 6×2 ECG; (4) 6×1 ECG;
(5) Averaged Complexes ECG; (6) ECG Measurements Report;
(7) Avg. Zoom Report; (8) Zoom Report
Interpretation Rhythm, Morphology
Environmental Conditions Operating Temperature: 0-40°C

Storage Conditions: -20-70°C

Humidity: 85% Max. (non-condensing)