2 Pack ECG 7 Step Ruler for ECG/EKG Interpretation, ECG Reference Guide Plastic Ruler ECG Ruler Plastic Ruler Measuring Tool Transparent EKG Calipers Measuring Tool, Follow a 7 Step Plan

Description: 【PACKAGE CONTENT】You will receive 2pcs ECG 7 step rulers(with blue ID holder case), enough quantity for your daily use and replacement. Each ECG ruler is about 8.5x5.4x0.3cm/3.35x2.13x0.12inch. 【ECG ANALYSIS】Scientific 7-step ECG interpretation method design, provides a detailed guide to ECG readings, including heart rate, axis, PR interval, QRS, QTc, T-wave morphology, etc., to help achieve accurate ECG analysis and diagnosis. 【DURABLE MATERIAL】Made of transparent plastic, the ECG 7-step ruler has clear printing, is safe and harmless, has smooth edges without burrs, is sturdy and durable, waterproof, not easy to break, and has a long service life. 【EASY CARRY】ECG 7-step ruler is lightweight and small in size for easy portability, you can easily fit it in a badge holder, pocket, or bag so that it is always available when needed. With ID holder, you can attach it to a lanyard for use. 【WIDE APPLICATION】This ECG ruler provides a clear visual aid for ECG education and practice, making it a great tool for hospital students and professionals, or anyone who wants to learn to master ECG interpretation. Specification: Color: As shown Material: Plastic Size(LxWxH x thickness): About 8.5x5.4x0.3cm/3.35x2.13x0.12inch Package includes: 2pcs x ECG 7 Step Ruler(with blue ID holder case) Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 1-2 cm differences due to manual measurement.