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Your items may arrive sooner than the estimated delivery date. Ralph Lauren reserves the right to send packages via other shipping methods based on the shipping destination as long as orders will still arrive within the arrival times outlined on RalphLauren.com.
When you choose the Economy delivery option, packages are delivered Monday through Saturday 8 AM to 4:30 PM. Orders sent by Fast, 2-Business-Day or Next-Day shipping methods are delivered Monday through Friday from 8 AM to 4:30 PM.
We recommend choosing Fast or Next-Day delivery if you are shipping your package to a business address. You will be asked to provide a telephone number on the shipping page of checkout, which is important in the event the courier needs to arrange a delivery time with you.
You will also be asked to provide an email address, to which we will send confirmation that your order was placed.
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Made with hardened steel.
Sturdy arms for accurate measurement of tracing intervals
Complete with protective plastic end cap molded ruler for easy reference
Chrome-plated caliper measures ECG wave sections with radius up to 7 in.
Package contains: you will get two EKG calipers in classic colors; They are practical for electrocardiogram drafting, nice supplies for school and hospital
Quality material: the EKG calipers measuring tool is made of stainless steel, which is reliable and strong, not easy to rust or deform, and can serve you for a long time
Ruler design: EKG caliper has a scale design on the protective cover, which can be applied as a ruler, and the measurement range is 0 - 2.4 inch; It is ideal for measuring electrocardiogram waveform
Easy to use: end points of electrocardiogram drafting divider are adjustable to the desired length to meet various needs, providing you with a good experience
EKG ECG Caliper to measure electrocardiogram wave sections. High Quality!
Adjustable screws for arms loose and tight.


Brass arms with chrome-plated feels heavier than other materials(stability).
