2pcs Electrocardiogram caliper with ruler electrocardiograph, nursing measuring tool with scale and sleeve, and dividing gauge

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).