allheart EKG Ruler

Item #: AH-DEKGRULER
Sale Price:$1.99
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EKG ruler with seconds scale for PR, QRS, cycle, length, coupling, escape, and parasystolic intervals. Measures just 1 3/4" x 6 1/2". Includes protective sleeve.

  • EKG ruler
  • Seconds scale for PR, QRS, cycle, length, coupling, escape, and parasystolic intervals
  • 1 3/4" x 6 1/2"
  • Protective sleeve.
November 23, 2010
ekg rulers

My first order apparently got lost in the mail. Waited over 3 weeks and items never arrived. However, I called customer service to complain and they said they would send another order to me. I didn't expect them to overnight it, but they did. I received my order today. Customer service rocks!! Thank you.

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