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fetal heartbeat monitor doppler fetal monitor
$10.00
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1. Automatic shutoff in 20s after using
2. Independent probe
3. The screen is with backlight, easy to read.
4. Adjustable output volume
5. Ultrasound frequency: 3.0MHz
2. Independent probe
3. The screen is with backlight, easy to read.
4. Adjustable output volume
5. Ultrasound frequency: 3.0MHz
