CONTEC10D Prenatal Doppler Fetal Baby Heart Rate Monitor 2.5MHZ Probe Li Battery ，Type-C Charging Port Federal law restricts the device to sale by or on the order of a licensed practitioner or therapist. Please use under the doctor's instruction. Model: CONTEC10D Classification: Type of protection against electric shock: Internally powered equipment. Degree of protection against electric shock: Type CF applied part (Ultrasound Probe). Harmful Liquid Proof Degree:IP22, protected against solid foreign objects of 12.5 mm Φ and greater; protected against vertically falling water drops when enclosure tilted up to 15°. Working System: Continuous running equipment. Physical Characteristics Dimension: 40mm(L) × 40 mm(W) × 152 mm(H) Display size: 24mm*24 mm Weight: About90 g Environment: Working: Temperature: + 5 ℃ ～ + 40 ℃ Humidity: ≤80％ Atmospheric Pressure: 70 kPa~l06 kPa Transport and Storage: Temperature: -10℃~+55℃ Humidity: ≤93％ Atmospheric Pressure: 50 kPa~l06 kPa Display: LCD screen FHR Performance FHR Measuring and display Range: 50 BPM ~ 240 BPM (BPM: beats per minute) Resolution: 1BPM Accuracy: ±2BPM Auto shutdown: After 1 minute no signal, power off automatically. Ultrasound Probe: Nominal Frequency: 2.5 MHz Working Frequency: (2.5±10％)MHz Ultrasonic Output Power: P < 20mW Working Mode: Pulse wave Doppler Effective Radiating Area of Transducer: -6dB:210mm2±15% -12dB: 490mm2±15% Peak-negativeacoustic pressure: P _ < 1 MPa Output Beam Intensity: I ob< 20mW/cm2 Spatial-peak Temporal-average Derived Intensity: I spta< 100 mW/cm2 Note: In all working application modes, mechanical index: MI<1, thermal index: TI<1. Battery: d.c.3.7V Li--polymer battery Working time: ≥ 3 h Fetal heart position reference in different pregnant stages:

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