Sonoline C Pocket Fetal Doppler
Professional handheld fetal heart rate detection using advanced Doppler ultrasound technology. High-resolution color LCD display with real-time waveform visualization, three operating modes, and intelligent alarm system for reliable fetal assessment in hospital, clinic, and home settings.

Clinical overview
The Sonoline C Pocket Fetal Doppler represents a paradigm shift in portable fetal monitoring technology. This compact, handheld device delivers professional-grade Doppler ultrasound performance in a truly pocket-sized form factor, enabling clinicians and expectant parents to assess fetal wellbeing anywhere—from traditional obstetric clinics to home settings, remote locations, and emergency situations. The high-resolution color LCD screen displays fetal heart rate as numerical values, bar graphs, and real-time heartbeat waveforms, providing multi-modal presentation that accommodates both experienced clinicians and lay users.
Manufactured by Contec Medical Systems, the Sonoline C incorporates proven ultrasound technology with intelligent features designed for safety and ease of use. Three distinct operating modes (Real-time, Averaged, and Manual) provide versatility for different monitoring scenarios, while automatic alarm activation alerts users to abnormal heart rate patterns. The ergonomic crooked probe structure facilitates optimal transducer positioning, and extended battery life (8+ hours from two standard AA batteries) ensures the device remains ready for weeks between battery changes. Whether used for routine prenatal surveillance, high-risk pregnancy monitoring, labor assessment, or home reassurance, the Sonoline C combines clinical reliability with unprecedented portability.
Key features & surgeon benefits
High-Resolution Color LCD with Waveform
- Real-time heartbeat waveform visualization for pattern assessment
- Numerical FHR display, bar graph, and multi-format presentation
- High-contrast display legible in varied lighting conditions
Three Operating Modes
- Real-time FHR Display for dynamic fetal response assessment
- Averaged FHR Display filtering transient artifacts for stable readings
- Manual Mode for operator-controlled measurement timing
Intelligent Alarm & Detection Systems
- Red visual alert when FHR falls outside normal physiological ranges
- Automatic probe fall-off detection preventing false readings
- Real-time battery status indication preventing unexpected power loss
True Pocket-Sized Design
- Compact dimensions enabling genuine pocket portability for mobile providers
- Lightweight construction reducing operator fatigue during extended use
- Ergonomic crooked probe structure for comfortable handling and optimal positioning
Extended Battery Life
- 8+ hours continuous operation from two standard 1.5V AA batteries
- Automatic shutdown after 1 minute without signal for power conservation
- Universal battery format ensuring worldwide availability and cost-effectiveness
Audio Recording Capability
- Compatible with external recording devices for fetal heart sound documentation
- Enables telemedicine consultation and specialist review
- Creates longitudinal records for comparison across gestational ages
Technical specifications
| Indications | Fetal heart rate detection and monitoring during prenatal care, labor assessment, and home surveillance; applicable from approximately 12 weeks gestation through delivery |
|---|---|
| Sizes / range | Single compact pocket-sized unit; universal application; no size variants |
| Material | Medical-grade polymer housing; ergonomic crooked probe structure; ultrasound transducer with protective surface |
| Sterilisation | Non-sterile device; probe surface cleanable with soft cloth and mild disinfectant solution; not autoclavable |
| Packaging | Compact carrying case with device, probe, batteries, and ultrasound gel |
| Warranty | 2 Year Manufacturer Warranty |
| Detection Technology | Doppler Ultrasound |
| Display Type | High-Resolution Color LCD Screen |
| Display Content | FHR Values, Bar Graph, Real-time Heartbeat Waveform |
| Operating Modes | Real-time FHR Display, Averaged FHR Display, Manual Mode |
| Power Source | Two 1.5V AA Batteries (LR6) |
| Battery Life | 8+ Hours Continuous Use |
| Alarm System | Red Visual Alert for Abnormal FHR (outside normal physiological range) |
| Probe Detection | Automatic Probe Fall-off Detection |
| Battery Indicator | Real-time Battery Status Display |
| Auto Shutdown | 1 Minute After Signal Loss (Power Saving Mode) |
| Audio Recording | Compatible with External Recording Devices via Audio Interface |
| Design | Compact, Pocket-Sized, Portable; Ergonomic Crooked Probe Structure |
| Intended Use | Hospital Obstetrics, Obstetric Clinics, Midwifery Practice, Home Monitoring, High-Risk Pregnancy Surveillance, Emergency Medicine |
Standard instrument composition
| Item | Description | Qty |
|---|---|---|
| Sonoline C Doppler Unit | Handheld fetal heart rate detection device with color LCD display and three operating modes | 1 |
| Ultrasound Probe | Ergonomic crooked probe structure with Doppler transducer | 1 |
| AA Batteries | 1.5V AA batteries (LR6) for power supply | 2 |
| Ultrasound Coupling Gel | Water-based gel for optimal acoustic coupling | 1 tube |
| Carrying Case | Protective case for device storage and transport | 1 |
| User Manual | Comprehensive operating instructions and safety guidelines | 1 |
Get in touch for pricing & availability
Contact our sales team to discuss the Sonoline C Pocket Fetal Doppler for your clinical setting or home use. We provide competitive pricing, volume discounts, and customization options for healthcare facilities and distributors worldwide.
Email: info@medicaldevicelab.com
Hours: Monday–Friday, 8 AM–6 PM PST | 24/7 Emergency Support Available









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