Clear EKG RulerSKU: 94542$5.99PriceExcluding Sales TaxCardio Meter * EKG Ruler with Seconds Scale for PR, QRS, Cycle Length, Coupling, Escape & Parasystolic IntervalsQuantityAdd to Cart
Clear EKG RulerSKU: 94542$5.99PriceExcluding Sales TaxCardio Meter * EKG Ruler with Seconds Scale for PR, QRS, Cycle Length, Coupling, Escape & Parasystolic IntervalsQuantityAdd to Cart