The SD3 Ultrasonic Fetal Doppler is an advanced, compact handheld fetal heart rate (FHR) monitor designed for OB/GYNs, midwives, and healthcare professionals. Featuring high-sensitivity interchangeable waterproof probes, a crystal-clear display, and real-time FHR monitoring, the SD3 Doppler provides exceptional sound clarity and fast, reliable detection of fetal heartbeats throughout every stage of pregnancy.
Key Features & Benefits
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High-Sensitivity Interchangeable Probes: Compatible with waterproof 2 MHz and 3 MHz probes to support early fetal heart detection and deep acoustic penetration.
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Early Detection Capabilities: The 3 MHz probe enables reliable fetal heart rate detection as early as 9 weeks into gestation.
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Deep Acoustic Penetration: The 2 MHz probe provides optimal acoustic penetration for later-stage pregnancies and higher-BMI patients.
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Ergonomic & Portable Design: Lightweight, compact body engineered for seamless, one-handed operation during clinical routines.
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Bright OLED/LCD Display: Provides clear visual readout of real-time FHR numbers and operating modes.
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Smart Auto Power-Off: Built-in sensor automatically turns off the device when the probe is returned to the side rack (SD3 PLUS & SD3 PRO models) to extend battery life.
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Audio Playback & Recording: Features real-time FHR monitoring along with built-in audio recording and playback functionality (SD3 PRO model).
Available Options & Model Comparison
| Model SKU | Battery Type | Display Type | Key Features |
| SD3D | Standard Alkaline Battery | LCD Display | Real-Time FHR Display, Handheld Portability |
| SD3PLUS | Rechargeable Battery | LCD Display | Auto Power-Off Probe Dock, Rechargeable |
| SD3PRO | Rechargeable Battery | OLED Display | Audio Recorder & Playback, Auto Power-Off Dock |
Technical Specifications
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Application: Fetal Heart Rate (FHR) Monitoring
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Probe Frequencies: 2.0 MHz & 3.0 MHz (Waterproof & Interchangeable)
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Work Modes: Real-time spot-check mode, Record & Playback mode (SD3 PRO)
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Display Options: Bright LCD or high-contrast OLED screen
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Power Supply: AA Alkaline Batteries or Built-in Rechargeable Lithium Battery
Why Choose the SD3 Ultrasonic Fetal Doppler?
Whether you are performing routine prenatal spot checks or comprehensive fetal heart rate assessments, the SD3 Fetal Doppler balances clinical accuracy with effortless portability. Its interchangeable probe design gives medical practices the versatility to monitor early pregnancies with high resolution or conduct deep-penetration scans in later stages—all with minimal acoustic noise and optimal signal clarity.
What’s Included in the Package?
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1 x SD3 Ultrasonic Fetal Doppler Main Unit
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1 x Selected Waterproof Fetal Probe (2 MHz or 3 MHz)
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1 x Power Adapter / Battery Pack (varies by model configuration)
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1 x User Manual & Quick Reference Guide
