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Product Name：AD51A Automatic FHR detection Informative, easy to read, Color TFT display FHR values, bar graph and heartbeat waveform color display Built-in speaker Automatic shutdown Battery status indicator Automatic counting Loudspeaker/Headphone jack Infinitely variable volume control Operation mode:Real-time FHR Color of device: blue,pink Detail >> |
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Product Name：AD51C Automatic FHR detection Informative, easy to read, Color TFT display FHR values, bar graph and heartbeat waveform color display Built-in speaker Automatic shutdown Battery status indicator Automatic counting Loudspeaker/Headphone jack Infinitely variable volume control Operation mode:Real-time FHR Color of device: blue,pink Detail >> |