【24Hours Ship】Fetal dopple baby heartbeat detector dopler fetal monitor with gel

Suitable Range: 9 week above. Material: ABS plastic. Size: 8cm3cm12cm/3.11.24.7inch. Weight: approx. 300g. Screen size: 1.8 inches. Voltage: DC 3V. Battery: 2pcs AA battery. Probe frequency: 3.0 MHz plus 10%. Fetal heart rate range: 30-240bpm per minute). Maximum output sensitivity: 2100Db. Ultrasonic output intensity: Ultrasonic output power: P. Peak negative sound pressure: P-Output beam sound intensity: lsptac50mW/cm2. Effective ultrasonic emission area: 208mm2±15. Easy-to-use, high-performance baby heart rate monitor. 3.0MHz Doppler fetal heart rate monitor with gel For pregnant women and babies at home, no radiation. With 150ml gel and baby thermometer. Doppler fetal heart rate monitor, with 150ml gel and baby thermometer. Fetal heart Doppler parameters: Probe frequency: 3.0MHz ± 10%. Error range: ± 2 beats/min. Heart rate display range: 30-240 beats/min. Validity period: 5 years. Dimensions: 130mm length 100mm width 36mm height). Weight: 250 grams. ARM 32-bit smart MCU. Easy