Contec TLC9803 3-lead 24-hour ECG Holter : Introduction
The Contec TLC9803 3-lead 24-hour ECG Holter is a dynamic ECG system with 3 leads that can continuously record ECG waveforms for 24 hours. The ECG waveform can be analyzed by PC software, which comes complimentary with the Holter.
Key Features
- Real-time storage of ECG data for 24 hours
- Flexible analysis channel selection function
- One-key print for quick report generation
- Arrhythmia analysis (MCSSTM and TMCATM)
- Heart rate variability analysis: 5-min, 1-hour, 24-hour
- HRT analysis for myocardial infarction risk
- Sleep breath pause syndrome analysis
- T-Wave alternation prediction for arrhythmia & cardiac death
- Atrial fibrillation analysis (AUTO/manual, segmented)
- 10+ waveform templates (APB, VPB, fibrillation, etc.)
- Pacemaker analysis templates (dual chamber, atrial, ventricular, pseudofusion, asynchronous, etc.)
Specifications
| Feature | Specification |
|---|---|
| Lead | 3-lead |
| Record Time | 24 hours |
| Power Supply | Two “AA” batteries |
| Interface | USB 2.0 |
| Calibration Voltage | 1mV ± 5% |
| Noise Level | ≤ 30 µV |
| CMRR | ≥ 60 dB |
| Low-frequency | Time constant ≥ 3.2s |
| Scan Speed | 25 mm/s ± 5% |
| Polarizing Voltage | ± 300 mV |
| Sensitivity | ≤ ± 10% |
| Minimum Signal | 50 µV p-p |
| Dimension | 111 × 60 × 25 mm |
| Weight | ~105 g (without batteries) |
Box Contents
- Lead cable (1 set)
- ECG electrode (1 bag)
- USB cable (1)
- Bag (1)
- User manual (1)
- Software
Frequently Asked Questions (FAQs)
- What is a 24-hour Holter monitor?
A portable device that continuously records heart activity over 24 hours for extended monitoring. - Why is it used?
To detect arrhythmias not visible in short standard ECGs. - How is it applied?
Electrodes are attached to the chest, connected to the monitor worn during daily activities. - Can I shower with it?
Most Holters are waterproof, but follow provider instructions. - Are there restrictions?
Normal activities continue, but avoid damaging electrodes/monitor. - What if symptoms occur?
Follow instructions; some devices include an event button. - How is data analyzed?
Healthcare professionals review ECG data for irregularities and diagnosis. - What if the monitor falls off?
Contact provider to reattach or reschedule monitoring. - Can I exercise?
Yes, normal activities including exercise are encouraged. - When will results be available?
Results are reviewed and shared during a follow-up appointment.

