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Contec 3-Channel ECG Machine – 300GA
Features :
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3.5-inch TFT Color Display: Provides a clear, high-resolution view of the ECG waveforms, heart rate, and device status (printing mode, battery, etc.) on a single screen.
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Simultaneous 12-Lead Acquisition: Captures all 12 leads of the heart's electrical activity at once, ensuring that the 3-channel printout is synchronized and clinically accurate.
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Self-Interpretation Engine: Features an automatic diagnosis function that measures parameters like Heart Rate, PR interval, QRS Duration, and QT interval, providing a preliminary analysis to assist the clinician.
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Massive Data Storage: The internal memory can store up to 1,000 patient records, allowing you to review history or reprint reports without re-testing the patient.
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Intelligent Digital Filtering: Uses sophisticated Digital Signal Processing (DSP) to remove baseline wander, AC interference (50/60Hz), and EMG (muscle tremor) noise for crystal-clear traces.
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Multiple Recording Modes: Supports Auto, Manual, and Rhythm modes, allowing for flexible lead switching and custom recording lengths.
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Ultra-Portable: Weighing only 1.6 kg, it is one of the most mobile 3-channel units available, complete with a built-in handle.
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Powerful Battery: Equipped with a 7.4V/3500mAh rechargeable lithium battery that supports up to 4 hours of standby or 90 minutes of continuous printing (approx. 175 ECGs).
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Connectivity: Features a USB interface for connecting to a PC. With optional ECG-Sync software, you can turn the device into a full ECG workstation for A4-sized printing and digital record management.
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Alarm System: Includes "Lead-off" and "Lack of paper" alerts to prevent incomplete tests and operational downtime.
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Safe for Critical Care: Built with Defibrillation Protection, ensuring the machine remains safe and functional even if a defibrillator is used on the patient while the ECG is connected.
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Main Unit: 1 x Contec 300GA ECG Machine.
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Patient Cable: 1 x 10-Lead ECG Patient Cable (Banana plug type).
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Limb Electrodes: 1 Set of 4 Limb Clamp Electrodes (Reusable).
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Chest Electrodes: 1 Set of 6 Suction Cup Chest Electrodes (Reusable).
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Thermal Paper: 1 x Thermal Recording Paper Roll (80mm wide).
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Power Supply:
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1 x AC Power Cord/Medical Grade Adapter.
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1 x Built-in Rechargeable Lithium Battery (Pre-installed).
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Grounding Wire: 1 x Earth/Potential Equalization Cable (for electrical safety).
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Documentation:
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1 x User Manual (English).
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1 x Warranty Card.
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1 x Quality Certificate/Calibration Report.
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Product Description :
The Contec 300GA is a digital electrocardiograph that acquires all 12 leads simultaneously but prints in a clear, 3-channel format. It features a 3.5-inch TFT color screen for real-time waveform monitoring and uses advanced digital signal processing (DSP) to eliminate electrical noise. With its built-in rechargeable battery and light weight (approx. 1.8 kg), it is ideal for bedside examinations, emergency rooms, and home visits.
Technical Specifications :
| Category | Specification |
| Lead System | Standard 12-lead (Simultaneous acquisition) |
| Input Mode | Floating, with protection against defibrillation and pacemakers |
| Display | 3.5-inch TFT Color LCD (High-resolution) |
| A/D Conversion | 12-bit |
| Sampling Frequency | 1000 Hz |
| Frequency Response | 0.05 Hz to 150 Hz |
| Common Mode Rejection (CMRR) | $> 60\text{ dB}$; $> 100\text{ dB}$ (with filters active) |
| Filters | AC (50/60Hz), EMG (25/35Hz), and Baseline Drift filter |
| Sensitivity | 2.5, 5, 10, 20, 40 mm/mV (Accuracy $\pm 5\%$) |
| Paper Speed | Auto: 25, 50 mm/s | Manual: 5, 6.25, 10, 12.5, 25, 50 mm/s |
| Printer Type | Thermal array printing system (8 dots/mm) |
| Paper Size | 80 mm (W) x 20 m (L) High-speed thermal roll |
| Internal Memory | Storage for more than 1,000 patient records |
| Safety Classification | Class I, Type CF (Defibrillation-proof applied part) |
| Patient Leak Current | $< 10\mu\text{A}$ |
| Power Supply | AC: 100V–240V (50/60Hz) | DC: 7.4V, 3700mAh Li-battery |
| Battery Performance | ~90 mins continuous printing / 4 hours standby |
| Dimensions | $315 \times 215 \times 77\text{ mm}$ |
| Weight | Approximately 1.6 kg to 1.8 kg |
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