Masimo EMMA™ Mainstream Capnometer


In select states this item may require a completed License Authorization Form (LAF) for purchase. Click here to learn more about LAF requirements and states impacted.

This item may require a completed
License Authorization Form (LAF).
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This item has been discontinued.

Suggested Substitue:

Masimo EMMA™ Capnograph (Item #MA3639)

The Masimo EMMA™ Mainstream Capnometer provides readings when used with the Masimo EMMA™ Adult/Pediatric or Infant Airway Adapters.

  • Small, portable capnometer, EMMA requires virtually no warm-up time, with full accuracy in 15 seconds to measure end-tidal carbon dioxide (EtCO2) and respiration rate (RR)
  • Compact, lightweight design fits in the palm of your hand for unmatched mobility and convenience
  • Used for short-term EtCO2 monitoring for adult, pediatric, and infant patients
  • Designed to fit easily onto a breathing circuit
  • Flexible use at multiple environments including pre-hospital, emergency medicine, operating room, and intensive care Helps clinicians assess the effectiveness of CPR and guide ventilation, allowing them to make adjustments in the course of treatment, breath by breath
  • Simple, easy-to-use interface for quick setup and one-touch programming
  • Audible and visual alarm system for No Breath Detected, No Adapter, Check Adapter, and adjustable high and low EtCO2 alarm
  • Long battery life — up to 12 hours of normal use with two standard AAA lithium batteries
  • Rugged, water-resistant design for reliable operation in challenging environments
  • Easy to maintain — no routine calibration required

Includes: EMMA, orange pouch, and lanyard.


  • CO2: 0-99 mmHg
  • RR: 3-150 bpm

Accuracy (Standard Conditions):

  • CO2: 0-40 mmHg +2 mmHg; 41-99 mmHg 6% of reading
  • RR: ±1 bpm


  • Type: 2 (two) AAA Cell Alkaline or Lithium
  • Battery life: 8 hours (Alkaline) or 12 hours (Lithium)


  • Operating temperature: 23 to 122º F
  • Operating humidity: 10-95%, non-condensing
  • Storage temperature: -22 to 158º F

Physical Characteristics:

  • Dimensions: 2.1” x 1.5” x 1.5”
  • Weight: 2.1 oz. (with alkaline batteries)

Adapter Information:

  • Dead space adult/pediatric: 6 ml
  • Dead space infant: 1 ml

Get FREE ground shipping on all orders $175+*. Pay $10.50 for ground shipping on orders under $175. 

When shipping ground you can expect the following transit time (business days) to your location.

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Exceptions to this policy would include all orders with special shipping requests (i.e. Next Day Air, etc.), orders for dealers/resellers, orders under $175.00 and all orders outside the contiguous United States. In addition, there is a $10.50 Narcotic Handling Fee on all narcotic orders.  Also, there is a $13.95 Refrigeration Handling Fee on all refrigerated medication shipments due to special requirements.

*Exceptions apply. See details.

  • Masimo EMMA™ Mainstream Capnometer