EKG normal values for PR segment, PR interval, QRS interval, ST segment, QT interval
Ruler for measurements in centimeter

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 2.13 inch
Height : 0.1 inch
Length : 3.38 inch

Item Weight: 0.16 ounce (View shipping rates and policies)
Shipping Weight: 0.16 ounce (View shipping rates and policies)

ASIN : B01BU7K312