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Amazon.com: 12V 3AH Battery Replacement for Parks Doppler 811B + 12V 1Amp Charger : Health & Household
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MedGyn Pocket Doppler with 2MHz Probe or w/3MHz probe, rechargeable, built-in recorder, accurate FHR detection, LCD display - Compression Medical Distributors, Inc.
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Amazon.com: 12V 3AH Battery Replacement for Parks Doppler 811B + 12V 1Amp Charger : Health & Household
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