... , AC and DC power I. FeaturesSimultaneously acquisition of 12 lead ECG data, IEC Class I, type CF ... Input circuit: floating, protection against defibrillator effect Lead: standard 12 leads, European leads. Input impedance:>50MΩ Calibrating voltage: 1mV ... *2% Digital sampling: 12 bits (simultaneously acquisition of 12 leads ECG data) DFT Filter automaticadjustment. Sensitivity: ...