جهاز مراقبة معدل ضربات القلب يعمل بالموجات فوق الصوتية

This baby heart detector is a hand-held obstetrical unit, which can be used in hospital, clinic and home for daily self-check of fetal heart rate by pregnant women. Realizing early monitoring and care for life. Easy to operate and carry.
Features:
Excellent performance with 3 working mode: real-time FHR display mode,averaged FHR display and manual mode and easy to operate & switch.
Premium quality: contains ultrasonic signal transmitter and receiver, analog signal processing unit, FHR calculating unit.
Large LCD display with backlight function, clear to see.
Have built-in speaker with volume control and headphone socket for audio output, connecting earphones or recorder.
Ultrasound probe, highly sensitive, easy to find fetal heart.
Clear speakers. Low power design, clearer listening, adjustable volume.
Automatic shut-down. Automatic shutdown in one minute without signal, economical and energy saving.
Without radiation, does no hurt to fetal.
Pocket hand-held design, portable, in beautiful appearance.
Specifications:
PowerBy: 2 * 1.5V Battery (Not Included)
Type: FD100
FHR Measuring Range: 50-240BPM (Beat Per Minute)
Resolution: 1BPM
Accuracy: +/-2BPM
Auto Shut-off: After 1 minute without signal
Working Frequency: 2.0MHZ +/-10%
Ultrasonic Output Intensity: 1sata〈5mW/c㎡
Effective Radiating Area of Transducer:〈208mm
Working Temperature: 5℃ to 40℃
Output Power: P〈20mW
Screen type: 45mm*25mm LED display
Main Body Size: 13.5 * 9.5 * 3.5cm
Package Size: 18.3 * 16.5 * 5.7cm / 7.2 * 6.5 * 2.24in
Package Weight: 350g / 12.35oz
Note: Optional accessories: earphone, coupling agent (expense is not included)
Package List:
1 * Baby Heart Detector
1 * User Manual (English)