Masimo RAD 57 Pulse CO-Oximeter

This Masimo Rad 57 Pulse CO-Oximeter is rugged and lightweight, ideal for field or hospital settings. A versatile handheld oximeter that is quick and easy to use and requires no user calibration, cooperation or consciousness. The screen provides patient status data clearly. Providing SpO2 reliable and pulse rate measurements, under challenging clinical situations including patient motion and low peripheral perfusion. With programmable default settings and up to 72 hours of trending memory.

The basic Rad 57 is white and a protective boot cover (as shown in the product image) is a separate accessory that is available to order in a choice of 7 colours. Please visit our Accessories section for more details and to place your order.


  • The unit is supplied as standard with Oxygen Saturation (SpO2), Pulse Rate, and Perfusion Index
  • SIQ bar - continuous indication of signal quality levels
  • PI bar - continuous indication of perfusion index
  • Red sensors can be used for SpO2, PR, and PI only
  • Red Adult reusable Direct Connect Sensor available in 3ft cable lengths (Reference 2053) - see Accessories
  • Rainbow sensors must be used when reading SpHb, SpCO, and SpMet
  • Rainbow Adult sensors are available in 3ft cable lengths (Reference 2201) - see Accessories

Available as upgrades to the basic Rad 57 unit:

  • Reference 2630 -Rad 57 with Hemoglobin (SpHb), oxygen Content (SpOC)
  • Reference 2296 - Rad 57 with Carboxyhemoglobin (SpCO)
  • Reference 2297 - Rad 57 with Methemoglobin (SpMet)
  • Reference 2313 - Rad 57 with Measure of Fluid Responsiveness (PVI)

When ordering please select the relevant code.

The price of each upgrade includes the cost of the basic Rad 57 Pulse CO-Oximeter.




Operating Temperature: -18°C to +54°C


Storage Temperature: -40°C to +70°C


Operating Humidity: 5% - 95%, non condensing


Operating Altitude: 500 mbar - 1060 mbar pressure (-304m to 5,486m)

Data Display

%SpO2, SpHb g/dL, SpOC mL/dL, %SpMET, SIQ bar, Pulse Rate, Perfusion Index, Patient Volume Index, Low Signal IQ, alarm status, alarm silenced status and battery status


158 x 76 x 36 mm

Battery Type

4 x AA Alkaline

Battery life

Up to 8 hours


0.37 kg


This Masimo Rad 57 Pulse CO-Oximeter is available for hire/rent for your clinical trial or is available on a purchase basis. It can be ordered with any other clinical trial, medical or laboratory equipment to create the most effective equipment management solution for your study.