The SIM-01 ECG Simulator may come handy when servicing or exhibiting Holter ECG devices in generating lifelike patient ECG signals. The device can generate 4 types of Heart rates at four amplitudes. Its most important function is to simulate ECG signals with normal sinus rhythm, however, you can also set up noisy periods. You can easily check the actual setting of the simulator with the help of four pieces of two-colour LEDs. The simulator is a small, easy-to-use device with low power consumption offered at favorable price.