| Sensitivity | 2.5mm/mV,5mm/mV,10mm/mV,20mm/mV,40mm/mV,erro≤±3% |
| Scan speed | 12.5,25,50mm/s three level,erro ≤±10% |
| Adjustable screen aspect ratio | 0.05～3.2 |
| Lead off condition detected | U=2V I=0.04uA |
| Active noise suppression | In patients who have not applied current |
| Tall T-wave suppression | 1.4mV |
| Inner voice | <30μVP-P |
| Input impedance | ≥2.5MΩ |
| Input loop current | ≤0.1μA |
| endure electrode polarizing voltage | ±300mV |
| ECG signal input range | ±5mV |
| Measurement mode | Diagnosis mode,monitoring mode,operation mode |
| Frequency property | Diagnosis mode 0.05～130HZ monitoring mode 0.5～40HZ operating 1～20HZ |
| CMRR | Diagnosis mode ≥80dB Monitoring mode ≥90dB Operating mode ≥100dB |
| HR measurement range | Adult 30～250bpm Neonate /pediatrics 30～300bpm |
| HR accuracy | ±2% |
| HR sensitivity | >200μV |
| Heart rate calculation | Take 4 to 12 R-wave cycle averaged |
| Refresh time heart rate | 1S |
| Heart rate response time | 80-120 BPM:range 4-7s Average 4-7s 80-40 BPM: range 4-7s Average 4-7s |
| Alarm range | 0～301bpm,upper and lower limit can be adjusted continuously |
| Alarm indicator | Audial and visual alarm |
| Heart rate too fast startup time of the alarm | Range :4-6s Average :4-6S |
| Protection | Isolated immunity voltage 4000V,50/60HZImmunity of electronic surgical Anti-defibrillation |
| Protection and recovery for defibrillation effect | In the monitor and the surgical model ,ECG waveforms recovery to baseline in 5S. |
| Electrode polarization recovery time after the fibrillation | In the monitor and the surgical mode ,ECG waveforms recovered to baseline in 10S. |
| Surgical interference of electrical recovery time | In the monitor and the surgical mode ,ECG waveforms recovered to baseline in 10S. |
