ECG Machine 3 Channel (GTECG-3303W)
Product Introduction
The ECG-3303W is a classical 3-channel electrocardiograph designed for fast and accurate acquisition, display, recording, storage, and analysis of ECG signals. It performs synchronous 12-lead ECG collection through body-surface electrodes with filtering, amplification, and A/D conversion to generate clear ECG waveforms for clinical reference. The device is intended for use by trained healthcare professionals on adult, adolescent, and pediatric patients in hospitals, clinics, ambulances, emergency settings, and physical examination centers.
Specifications
Model: ECG-3303W
Lead System: Standard 12-lead, synchronous acquisition
Operating Modes: Manual, Auto, R-R (Rhythm), Store (Physical Examination)
Sampling Rate: 32,000 Hz
Filters: AC 50/60 Hz; EMG 25/45 Hz; Anti-drift 0.15 Hz (adaptive)
CMRR: ≥120 dB (with AC filter)
Input Circuit: Floating, defibrillation-proof protection
Input Impedance: ≥50 MΩ
Input Circuit Current: ≤0.05 μA
Patient Leakage Current: <10 μA
Calibration Voltage: 1 mV ±2%
Voltage Tolerance: ≥±500 mV
Time Constant: ≥3.2 s
Frequency Response: 0.05–160 Hz (-3 dB)
Noise Level: <15 μVp-p
Inter-channel Interference: ≤0.5 mm
Sensitivity: 5, 10, 20, 40, Auto (mm/mV)
Recording Formats: 1ch×12+R; 3ch×4; 3ch×4+R; 1-minute rhythm lead
Paper Speed: 6.25, 12.5, 25, 50 mm/s (±3%)
Recording Paper: 80 mm × 20 m thermal roll, supports up to 30 m, gridless
Display: 5-inch color LCD, 800 × 480
Internal Memory: 250 cases, expandable to 1000 (optional)
Interfaces: USB, UART
Power Supply: AC 75–265 V (±10%), 50/60 Hz, 60 VA; DC 14.4 V 2200 mAh Li-ion battery
Battery Performance: ~9 hours standby; ~2.5 hours charging
Features
Compact and ergonomic design for portable and bedside use
Synchronous 12-lead acquisition with high-accuracy digital filtering
Automatic baseline adjustment and pacemaker pulse recognition
Automatic ECG interpretation analyzing over 200 abnormal ECG patterns based on Minnesota Code
High-resolution 3-channel thermal printing on 80 mm paper
Multiple operating modes with rich menu presets for diverse clinical needs
5-inch color display presenting ECG waveforms, patient information, parameters, system status, and alerts
ECG storage, replay, editing, and optional PC data management
Contents
Main ECG unit (1 pc)
Patient cable (1 pc)
Chest electrodes (1 set)
Limb electrodes (1 set)
Thermal printing paper (1 roll)
Paper spindle (1 pc)
Power cord (1 pc)
Ground wire (1 pc)
Packaging and Variations
Device dimensions: 300 × 230 × 75 mm
Device weight: 2.8 kg
Standard packing: 1 unit per carton, 39 × 34 × 21 cm, net 3.40 kg, gross 4.10 kg
Bulk packing: 4 units per carton, 69 × 41 × 46 cm, net 13.60 kg, gross 18.00 kg
Optional functions: PC ECG management software (ECGNET), USB storage activation, UART cable, USB dongle
Optional accessories: Button-type patient cable, clamp-type patient cable, disposable electrodes, electrode adapters, pediatric chest electrodes, pediatric limb electrodes, conductive gel, carrying bag, carrying case, trolley