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SRF618E is the compact and improved type of Fetal Heart Rate Doppler detector, which performs excellently in:
• Accurately detect FHR with digital LCD display and built-in speaker
• Multi-displaying of FHR: transient FHR, average FHR & manual calibrating
• Intellectual cancellation of erroneous FHR; Alarm on over-limited FHR
• Indication of the volume and endurance of the power
• Automatically power off if no FHR signals received within 2 minutes to save energy
• Battery power supply
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