EKG Caliper ECG Calipers Measuring Tool with Ruler Electrocardiogram Drafting Divider for Nursing (Black, Blue, 2 Pieces)
Protective cover - Molded ruler for easy reference.
Set includes Deluxe EKG Caliper and EKG Ruler.
Sturdy arms for accurate measurement of tracing intervals.
EKG Ruler: The EMI EKG Ruler # 422 features seconds scale for PR, QRS, Cycle, Length, Coupling, Escape, and Parasystolic Intervals. Measures just 1 11/16 inch x 6 3/8 inch small enough to fit in a medical coat pocket..