Ruler Student Pocket Reference Guide Electrocardiogram Ruler Cardiogram Transparent Soft Heart Rate Ruler

Features: Fast essential measurement for on paper and screen of patient monitor defibrillators. Crafted from high quality plastic material, this ruler provide flexibility and accurate measurements. Perfect for everyday clinical routine use and first respond service. Lightweight, small size,easy to carry. Whether in a medicals offices, hospital, or during rounds, practical tool that provide essential measurements for accurate electrocardiogram interpretation in a conveniently forms.

Specifications: Material:Plastic Color:Dark Blue,Light Blue Size:Approx.21cm/8.26''x9cm/3.54''

Package Includes: 1Piece Ruler

note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color.