【COD】LCD Precision Ultrasonic Fetal Doppler Heart Rate Monitor for Baby Pregnancy Heartbeat Detector - Healthcare

Features: The probe has high sensitivity, no radiation, low ultrasonic power, safety, and high accuracy. A large LED display screen can clearly show fetal heart rate, battery capacity, and volume. Equipped with volume adjustment function, you can easily adjust the volume according to your own needs. Insert the 3.5mm 32 mono or dual channel headphone jack into the headphone jack of the device to listen to fetal heart sounds. At the same time, the device's external speakers will be turned off and there will be no sound output. After hearing recognizable and rhythmic fetal heart sounds, keep the probe stationary for at least 5 seconds so that the device can accurately measure and display fetal heart rate. Powered by two AA batteries; it supports continuous operation (excluding batteries). Specifications: Name: Fetal sound meter Material: ABS Color: White Battery: 2 * AA battery (not included) Headphones: 3.5mm 32 mono or dual channel headphones Ultrasonic working frequency: 3.0MHz The deviation between ultrasonic working frequency and nominal ultrasonic working frequency should not exceed 15%. Comprehensive sensitivity is at a distance of 200mm from probe surface with a range of up to approximately290dB. Fetal heart rate measurement and display range should not be less than65-210BPM. Sound speed ranges from1520-1620m/s. Acoustic impedance is between1 .5-1 .7 x106 Pa.s/m. Sound attenuation stands at15Pa S with PH value ranging from5 .5-8. Using an altitude of2000m Packaging weight is160g/5 .64 ounces. Packing specifications include: 1 * Fetal Doppler 1 * Manual 1 *30ml Gel Attention: This product does not provide coupling agents; Aloe gel is recommended as it cannot work on ultrasonic gel). The normal fetal heart rate ranges from120-160bpm while100-120bpmand160 -180bpm are critical intervals that should be noted."