Lionheart 1 ECG/Arrhythmia Simulator
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Fast, complete ECG testing.


This small ECG simulator is packed full of waveforms designed to verify accuracy of ECG machines, monitors and telemetry units. Use the LH-1’s performance waveform either manually or with automatic sequencing to check low and high frequency response, linearity, gain, damping, paper speed, etc. The wide range of common disrhythmias can be used to check arrhythmia detection systems and teach the interpretation of heart rhythms. All ECG/performance waves are adjustable in amplitude and rate and help check rate meters, alarms, displays, and more.

The Lionheart 1 utilizes universal ECG jacks that are AHA color coded to easily connect to ECG snaps, clips and banana leads. No user interface is easier to use than the rotary knob on the front panel of the LH-1. The unit comes with a soft vinyl carry case, battery eliminator, and user’s manual.


  • Simple to use
  • Hand-held
  • 12-Lead ECG simulation
  • Twelve arrhythmias
  • Universal ECG jacks
  • Auto-sequencing of performance waveforms


  • ECG Waveforms Normal Sinus Rhythm: 30, 60, 120, 180, 240 BPM

  • Performance Waveforms
    Square wave: 2Hz;
    Sine waves: 10, 40, 50, 60, 100 Hz;
    Triangle wave: 2 Hz

  • Amplitudes 0.5, 1.0, 1.5, 2.0 mV +/-2% lead 1 or +/- 5%

  • Lead Configuration12 lead derived from one resistively divided analog signal: RL, RA, LA, LL, V1-V6

  • Arrhythmias Atrial Fibrillation; Second Degree Heart Block Type 1; Right Bundle Branch Block; Premature Atrial Contraction; Premature Ventricular Contraction; Run of 5 PVC’s; Bigeminy; PVC R on T wave; Ventricular Tachycardia; Ventricular Fibrillation; Pacer;

  • Auto-Sequence
    Pulse wave: 4.0 s/1mV
    Sine wave bursts: 10, 40, 50, 60, 100 Hz
    Triangle wave: 2 Hz

  • High Level Output 0.5 V/mV, lead 1

  • Power: 9V alkaline battery

  • Weight: 0.9 lbs (0.4 kg)

  • Dimensions: 5.2" x 3.9" x 1.4" (13.2 x 9.9 x 3.6 cm)


  • Battery eliminator
  • User's Manual
  • Soft vinyl carry case