Product Overview
The FD-640 Series Fetal Doppler is a compact, handheld fetal heart rate monitor engineered for expecting parents and healthcare professionals. It combines medical-grade safety with an intuitive design, enabling reliable detection of fetal heart sounds with minimal setup. Whether for quick daily home monitoring or routine clinical prenatal checks, the FD-640 series delivers stable performance, with multiple model variants to suit different user needs and budgets.
Key Features
Simple & Intuitive Operation: Ergonomic button layout for easy use, no complex calibration required, suitable for both home users and medical staff.
Crystal-Clear Audio: High-fidelity sound output via built-in speaker or optional earphone, for private or shared listening experiences.
High-Sensitivity Doppler Probe: Standard 2MHz probe (2.5MHz/3MHz optional) captures stable fetal heart signals quickly and consistently.
Safe Low-Ultrasound Design: Ultrasound intensity <10mW/cm², ensuring safe daily monitoring for both mother and fetus.
Versatile Display Options: Choose between black/white or color LCD with backlight; advanced models (FD-640C/640G) show real-time FHR curves for visual monitoring.
Flexible Power Supply: Available with alkaline batteries or rechargeable Ni-MH batteries (FD-640D/640C support in-device charging).
Accurate Readings: FHR measuring range: 50–230bpm, resolution 1bpm, accuracy ±2bpm.
Portable & Lightweight: Dimensions 146mm × 100mm × 33mm, gross weight approx. 500g, easy to carry and store.
Certified Quality: FDA, CE, and ISO certified, meeting international medical device safety standards.
Customizable Solutions: Support OEM/ODM/SKD services, with optional accessories including earphones, 3MHz probes, carry bags, and Bluetooth APP connectivity.
Application Scenarios
Home Daily Monitoring: Expecting parents can check their baby’s heartbeat anytime between prenatal visits.
Clinics & Community Health Centers: Ideal for routine prenatal examinations by midwives and general practitioners.
Hospitals & Obstetric Departments: Suitable for outpatient checkups and basic fetal monitoring.
Technical Specifications
Specification | Details |
|---|
Ultrasound Frequency | 2MHz (2.5MHz/3MHz optional) |
Ultrasound Intensity | <10mW/cm² |
Power Supply | 2 × 1.5V AA alkaline battery / Rechargeable Ni-MH battery (with adapter) |
Display | 35.04mm × 28.03mm LCD (B/W or color, with backlight) |
FHR Measuring Range | 50–230bpm |
FHR Resolution | 1bpm |
FHR Accuracy | ±2bpm |
Power Consumption | <1W |
Dimensions | 146mm × 100mm × 33mm |
Gross Weight | Approximately 500g |
Certifications | FDA, CE, ISO |
FD-640 Series Model Comparison
Function | FD-640B | FD-640D | FD-640G | FD-640C |
|---|
Doppler Type | Continuous | Continuous | Continuous | Continuous |
Display Type | B/W LCD | B/W LCD | Color LCD | Color LCD |
Built-in Speaker | Yes | Yes | Yes | Yes |
Battery Indicator | Yes | Yes | Yes | Yes |
Display Mode | Digit Only | Digit Only | Digit + FHR Curve | Digit + FHR Curve |
Various Work Modes | Yes | Yes | Yes | Yes |
Battery Type | Alkaline | Ni-MH Rechargeable | Alkaline | Ni-MH Rechargeable |
In-Device Charging | No | Yes | No | Yes |
Optional Voice Function | Available | Available | Available | Available |
Optional Bluetooth | Available | Available | Available | Available |
Standard Configuration
1 × FD-640 Series Fetal Doppler Main Unit
1 × 2MHz Doppler Probe
1 Set of Batteries (Alkaline or Ni-MH, with adapter for rechargeable models)
User Manual
FAQ
Q: Is the FD-640 fetal doppler safe for daily home use?
A: Yes. It features low ultrasound intensity (<10mW/cm²) and is FDA/CE/ISO certified. Short daily monitoring sessions are safe for both mother and fetus.
Q: Can I use earphones with this fetal doppler?
A: Yes. An earphone is available as an optional accessory for private listening.
Q: What probes are available?
A: The standard probe is 2MHz. Optional 2.5MHz or 3MHz probes are available for different pregnancy needs (e.g., higher BMI or late-stage pregnancies).
Q: Does this product support OEM/ODM customization?
A: Yes. We offer neutral, OEM, ODM, and SKD services for global partners, including custom packaging, branding, and feature modifications.
