Condition: 100% Brand New
Item Type: Baby Heartbeat Monitor
Ultrasound Frequency: 2MHz
Sensitivity: From 10 to 12 weeks
Ultrasonic Operating Frequency Nominal Sound Operating Frequency: 2.0MHz (specific to the detector label) The deviation between the sound operating frequency and the nominal sound operating frequency should be less than ±5%.
Heart Rate Measurement Range: 50-240bpm
Accuracy: ±1% or 1 time/minute, taking the penetration value
Sensitivity at 200mm from the Sensor Surface: > 90dB
Peak P (MPa) Negative Sound Pressure: P_ Sound Pressure at the Spatial Peak and Time Insertion: Ultrasonic Output Power: Effective Area of Ultrasonic Transducer Sensitive Component: 157mm²±10%
Working Mode: Continuous Waves
Power Supply: 2 x 1.5V AAA Battery (Not Included)
Color: Red, Blue, Purple (optional)

How to Use:
1. Make sure there are 2 batteries before using for the 1st time.
2. Press the power button to turn the power on, then adjust the volume.
3. Lay flat with your pillow and keep your legs straight and relaxed.
4. Attach the fetal probe to the abdomen to locate the fetus and find the best direction for the fetal heart.
5. After hearing the regular fetal heart sound, the FHR value will be displayed on the screen in real time.