Beat to Beat

Spencer Instrumentation supplies premiere patient care instruments to veterinarians. Our lineup of vital sign monitors and equipment are unsurpassed in quality and design. Take a few  moments to browse our catalog. We are certain that you will be impressed by our devices. We look forward to developing a relationship with you and your  practice.

The Beat to Beat Patient Audio Monitor (PAM) provides accurate transmission of heart and lung sounds. This is accomplished by placing a very sensitive microphone at the proximal end of an esophageal stethoscope. The detected sound is filtered and amplified, and then drives a low frequency response speaker by state-of-the-art, low power solid state circuitry.

The Beat to Beat allows you, the user, to adjust the sound output of the monitor to the specifically desired levels of  heart and lung tones. This is accomplished through the unique use of separate  volume controls.

The Beat to Beat monitor is battery powered, comes with a lifetime warranty, to be free from defective material or  workmanship.



  • Power: 8 AA Alkaline Batteries
  • Dimensions: 6 7/8" H x 4 7/8" W x 2 7/8" D
  • Weight: 2 lbs. 8 oz.
  • Order Number MS-04a



  • 1 BEAT to BEAT Monitor
  • 1 ARM Esophageal Microphone Cable
  • 1 Pole Mounting Kit
  • a set of 4 Esophageal Stethoscopes
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    SPENCER INSTRUMENTATION, INC. reserves the right to discontinue models, change specifications, price or design of any device listed, at any time without notice and without incurring any obligation whatsoever.

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