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9V angelsounds fetal heart detector HE-100S, output beam intensity < 20mW/c
all to one design;
power with dry battery(9V);
the probe taking the principle of fetal ultrasound to collect the fetal heartbeat signals of fetus;
can transmit the fetal heart signal to monitoring centre system with a headphone socket; can inspect above 12 weeks fetal heartbeat, with some gel, water or oil on the probe.
Utrasound frequency : 3.0 MHz
Acoustic intensity: < 10mW/c
Peak negative pressure: <1 Mpa
Output beam intensity: <20mW/c