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As an EMS student learning cardiology for the first time, it can seem like an overwhelming amount of information. This pocket-sized ruler is designed to help you better understand and interpret EKG waveforms. Crafted from heavy-gauge clear plastic, this ruler ensures enhanced durability for prolonged use and reliable interpretation of electrocardiograms.
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🇺🇸 Ship from USA · On Agora since 2025
$3.99