Specification: 1. Sample rate: 1000Hz, simultaneous 12 leads recording 2. Resolution:12bit 3. Power: 5.0V (DC) 4. Patient Insulation: 4000V AC 5. Defibrillation Protection: Built-in box 6. Digital resolution: 2ª¦V 7. Frequency response: 0.05-250 Hz 8. Common mode rejection: >90dB 9. Input impedance: >10Mª+ 10. Time constant: í¦3.2 s 11. Max electrode potential: í+300mV DC 12. Dynamic range: í+10mV 13. Isolate voltage: 4000V 14. Current leak: