---
product_id: 690790395
title: "ECG Ruler with Heart Rate, Axis, PR Interval, QRS Duration, QTc Interval, and T-Wave Morphology Indicators"
brand: "the medical lounge"
price: "$9.20"
currency: USD
in_stock: false
url: https://www.desertcart.ec/products/690790395-ecg-ruler-with-heart-rate-axis-pr-interval-qrs-duration
store_origin: EC
region: Ecuador
---

# Compact, portable design Precision-calibrated scales Comprehensive ECG component indicators ECG Ruler with Heart Rate, Axis, PR Interval, QRS Duration, QTc Interval, and T-Wave Morphology Indicators

**Brand:** the medical lounge
**Price:** $9.20
**Availability:** ❌ Out of Stock

## Summary

> 🫀 Master ECG interpretation with precision and style!

## Quick Answers

- **What is this?** ECG Ruler with Heart Rate, Axis, PR Interval, QRS Duration, QTc Interval, and T-Wave Morphology Indicators by the medical lounge
- **How much does it cost?** $9.20 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/690790395-ecg-ruler-with-heart-rate-axis-pr-interval-qrs-duration)

## Best For

- the medical lounge enthusiasts

## Why This Product

- Trusted the medical lounge brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Authenticity Guaranteed:** Only buy from The Medical Lounge to avoid counterfeits and ensure reliable readings.
- • **Pocket-Sized Power Tool:** Slim, lightweight design fits effortlessly in your pocket or lanyard.
- • **Pinpoint Accuracy Every Time:** Calibrated millimetre scales ensure flawless ECG interval measurements.
- • **Decode Complex ECGs with Ease:** Clear visual aids highlight key leads and wave morphologies for confident diagnosis.
- • **Built to Last in Clinical Environments:** Durable, high-quality materials withstand daily professional use.

## Overview

This ECG ruler is a professional-grade tool designed for precise measurement of heart rate, axis, PR interval, QRS duration, QTc interval, and T-wave morphology. Featuring clear, labeled diagrams and calibrated scales, it enables accurate ECG analysis and diagnosis. Crafted from durable materials and sized for portability, it is an essential companion for healthcare professionals seeking reliable and efficient cardiac assessment.

## Description

Full description not available

## Features

- BEAWARE OF FAKES: We have had several overseas companies steal our design and attach themselves to this listing. Make sure when purchasing to select The Medical Lounge as the seller to receive your high quality item. We have purchased several of the counterfeits and problems we have seen are, heavily scratched, too big, too thick, ink rubbed off & ruler measurements incorrect therefore could give you a faulty assessment of an ECG.
- Clear Visual Aids: The ruler features labelled diagrams and illustrations to help identify key ECG components like inferior, septal, anterior, and lateral leads, as well as normal and abnormal axis deviations.
- Precise Measurements: Calibrated scales on the ruler allow for accurate measurement of intervals and durations in millimetres, enabling precise ECG analysis and diagnosis.
- Durable Construction: Made from high-quality materials, this ECG ruler is designed for long-lasting use in medical settings.
- Compact and Portable: With its convenient size, the ruler can be easily carried in a pocket or stored in your lanyard. making it an essential tool for healthcare professionals on the go.

## Product Details

- **Material:** Plastic
- **Brand:** The Medical Lounge
- **Colour:** Black
- **Style:** Transparent
- **Graduation range:** 0-12 Millimeters

## Images

![ECG Ruler with Heart Rate, Axis, PR Interval, QRS Duration, QTc Interval, and T-Wave Morphology Indicators - Image 1](https://m.media-amazon.com/images/I/81EVAc8dt1L.jpg)
![ECG Ruler with Heart Rate, Axis, PR Interval, QRS Duration, QTc Interval, and T-Wave Morphology Indicators - Image 2](https://m.media-amazon.com/images/I/71QV8OY0pxL.jpg)
![ECG Ruler with Heart Rate, Axis, PR Interval, QRS Duration, QTc Interval, and T-Wave Morphology Indicators - Image 3](https://m.media-amazon.com/images/I/71p0EcO-Q5L.jpg)
![ECG Ruler with Heart Rate, Axis, PR Interval, QRS Duration, QTc Interval, and T-Wave Morphology Indicators - Image 4](https://m.media-amazon.com/images/I/71xzpwEoblL.jpg)
![ECG Ruler with Heart Rate, Axis, PR Interval, QRS Duration, QTc Interval, and T-Wave Morphology Indicators - Image 5](https://m.media-amazon.com/images/I/71Y09C4+7vL.jpg)

## Frequently Bought Together

- The Medical Lounge. Transparent ECG ruler/card. ECG/EKGs made easy by following a 7 step plan. Pocket sized 8.6cm x 5.4cm. Ideal for students, paramedics, EMT's, nurses & doctors.
- YardCard - Medical Reference Card Set: ECG, Blood Test Ranges, Glasgow Scale, SBAR, & NEWS2 | Ideal for Medical & Nursing Students, Paramedics
- ECG/EKG Rhythm Pocket Card, Double Sided ECG/EKG RhythmCalipers Pocket Card | ECG Rate Pocket Cards EKG Calipers For Nurses, EKG Techs, Students Studying

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**Shop now:** [https://www.desertcart.ec/products/690790395-ecg-ruler-with-heart-rate-axis-pr-interval-qrs-duration](https://www.desertcart.ec/products/690790395-ecg-ruler-with-heart-rate-axis-pr-interval-qrs-duration)

---

*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-01-31*