Airgoesin Pen Type ECG EKG Calipers Ruler Measures Precision Deluxe 1pcs
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<b>[Product Information]</b><br>
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<li>EKG ECG Caliper to measure electrocardiogram wave sections. High Quality!</li>
<li>Adjustable screws for arms loose and tight.</li>
<li>Brass arms with chrome-plated feels heavier than other materials(stability) .</li>
<li>Hardened steel points</li>
<li>With a deluxe silver case</li>
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