Features:
1.Beautiful shape, portable, easy operation
2.The probe has bending structure which is easy to operate and can increase the ease of the pregnant women, embodies the humane care design
3.Fetal heart rate values, bar graph and heartbeat waveform color screen display
4.Alarming in red when the fetal heart rate range is out of the normal range
5.Battery status indicator
6.The probe can be changeable
7.Probe inspection
8.Built-in speaker
9.Output for headphone
10.Auto shut off
11.Two pieces of standard 1.5V alkaline battery available which can work no less than 8 hours

Specifications:
Anti-electroshock Type: Internally powered equipment
Anti-electroshock Degree: Type B applied part
Display: 1.77"262K TFT display
FHR Measuring Range: 50BPM ~ 240 BPM (BPM: beat per minute)
Resolution: 1 BPM
Accuracy: ±2 BPM
Power Consumption: < 0.8W
Voltage: DC 3.0V
Power Supply: TWO 1.5V(AA size)alkaline battery
Suitable Using Range: Suitable for use after the 12th week of pregnancy
Auto Shut-OFF: After 1 minute no signal, power off automatically
Probe:
Nominal Frequency: 2.0 MHz
Working Frequency: 2.0 MHz ± 10%
Ultrasound Output Power: P < 10 mW
Ultrasonic Output Intensity: Isata < 5mW/cm2
Negative Peak Sound Pressure : p_ < 0.5 MPa
Working Mode: Continuous wave doppler
Effective Radiating Area of Transducer: 157 mm2 ± 15%