... port, cable port, VGA port , LAN port ECG 1112 operation key ECG-1112 printer coverAccessories packageSpecifications:Input way:Floating and ... constant:>3.2sNoise leavel:≤13μVp-pFilter:AC filter,ECG interference filter,DFT filterSensitivity:Auto 10,20mm/mV±2% ... Weight:3.5KgOption:ECG Worksation Software SD Card Portable PackTrolley7"LCD B/W,Color,TouchECG-1112 packing Digital 12-channel ECG/EKG 1112L