Pocket Nurse® ECG Ruler (0) No Reviews yet Pocket Nurse® ECG Ruler SKU: DG028219 $4.31 Delivery Options: Qty -+ Add to Cart Need Installation, Service or Repairs? Call Service Department at (877) 593-6011 Description Pocket Nurse® ECG RulerMeasures heart rate and interval timesStandard interval times on ruler for referenceColor: Clear DescriptionBackDescriptionPocket Nurse® ECG RulerMeasures heart rate and interval timesStandard interval times on ruler for referenceColor: Clear Reviews 0 BackRatings & ReviewsNo reviews availableBe the first to Write a Review