Fetal Doppler Detector Baby Heart Beat Rate Probe Prenatal Monitor Ultrasonic

Product Information: Fetal Doppler is a kit used to detect the heartbeat of an unborn baby. It features a large LCD with a blue backlight that displays the heartbeat per minute, a built-in loudspeaker with buttons to increase or decrease the heartbeat volume, and a 3.0 MHz waterproof ultrasound probe with coil cable. This product is lightweight, highly portable, easy to operate, Probe frequency: 2.5MHz±10% Tolerance scope: ± 2bpom Heart rate display: 3-240BPM Lifetime/Life: 5 years Normal heart rate: 120~160times/min Applicable batteries: AA batteries (not included)