Baby Heartbeat Checking Machine Cheap Good Quality Fetal Doppler

Are you expecting a baby? Are you eager to hear the sound of your baby's heartbeat? Look no further! Our cheap fetal doppler monitor is the perfect way to connect with your unborn baby. With our easy-to-use design and advanced technology, you can hear your baby's heartbeat anytime, anywhere. Plus, our monitor is affordable and comes with a satisfaction guarantee. So don't wait - get your fetal doppler monitor today and start bonding with your unborn baby!

uSONO B1 LED Fetal Doppler Feature:
1) Delicate and compact design, portable and easy to use
2) Crooked probe structure, which is easy to operate and increases the feeling of comfort, embodies the humanized design.
3) Three working mode: Real-time FHR Display Mode, Averaged FHR Display Mode and Manual Mode
4) FHR values, bar graph and heartbeat waveform color display
5) Alarming in red when the FHR value is out of the normal range.
6) Probe falls off detection, battery status indication
7) Automatic shutdown: The device will automatically turn off if there is no signal within 1 minute.
8) Audio interface: Can be connected to other recording devices by recording cable, record fetal heart sound in real-time
9) Two 1.5V batteries (AA LR6) can last more than 8 hours for normal use

Specification:
Ultrasonic emitting frequency 3.0Mhz±10%
Ultrasound output power 10mW/cm
DC power supply AA*2
Overall sensitivity at the distances 200mm from the face of the probe 92.4dB
Doppler frequency 500±50Hz
Target velocity 10cm/s~40cm/s
Spatial-peak temporal-peak acoustic pressure 20.1kPa
Effective area of the ultrasonic transducer active element 3.07cm2
The acoustic coupling medium for normal use ph: 5.5~8, Acoustic
impedance: less than 1.7*105g /cm2·s
Working mode Continuous wave Doppler
Audio output power less than 0.5 W
Audio out Socket Φ2.5mm

[MargaretaAyuAyu]

Mine did not want to start after I changed its batteries. Any suggestions?