Expectant mothers and medical professionals can easily monitor and hear the baby's fetal heart rate with this simple-to-use fetal doppler. There are three options for viewing the fetal heart rate on the backlit LED panel, and an integrated load speaker produces audio. As early as 12 weeks, the heartbeat can be detected with the 3Mhz probe. Needs two AA batteries, which are included. 

• Fits both personal and professional use
• Foetal Heart Rate is seen in an LCD display featuring a backlight
• Three modes: manual, averaged, and real-time
• 3MHz Probe
• Integrated loudspeaker
• Adaptable probe
• Backlight
• Turns off the electricity automatically
• CE accredited

LCD display dimensions: 45 x 25 mm; FHR measurement range: 50 – 240 beats per minute (BPM).
1 BPM is the resolution.
Precision: ± 2 BPM
Power Usage: Less than 0.8 W DC 3.0 V of voltage
Power Source: TWO 1.5V AA batteries alkaline power source
Appropriate Operating Range: Useful beyond the twelfth week of gestation
Auto power-off: If there is no signal for one minute
Standard frequency of the probe: 3MHz CE 1046