Masimo Rad-57® Pulse CO-Oximeter®

Featuring Masimo SET® Measure-through Motion* and Low Perfusion™ Pulse Oximetry with Upgradeable rainbow SET® Technology.  The Rad 57 Series is easy to use, lightweight, durable, and offers portable continuous monitoring.

Features

• Continuous monitoring in a portable, handheld device
• Quick and easy to use
• Rugged and lightweight; suitable for field and hospital settings.
• Low Signal I.Q.® (SIQ) indicator identifies conditions of low measurement confidence
• Up to 72 hours of trending memory
• Available in a variety of configurations including RD rainbow patient cables, boots, carrying case, service options, and parameter options of SpCO, SpMet, PVi and SpHb.
• Compatible with both single-patient and reusable sensors.

Masimo SET Measurements (included standard)

• Oxygen Saturation (SpO2).
• Pulse Rate (PR).
• Perfusion Index (PI).
• Pleth Variability Index (PVI): Helps assess fluid responsiveness in mechanically ventilated patients, aiding fluid management.

Rainbow SET Measurements (upgradeable options):

In addition to traditional blood gas measurements, these rainbow SET parameters can be added on after purchase to adapt to the needs of your facility and patients:

• Total Hemoglobin – SpHb: Helps with quick, spot-check assessment.
• Methemoglobin – SpMet:  Helps identify methemoglobinemia, a dangerous and deadly reaction caused by many drugs routinely administered in clinical settings.
• Carboxyhemoglobin – SpCO:  Helps detects carbon monoxide (CO) poisoning.
• Oxygen Content – SpOC:  By calculating hemoglobin and oxygen saturation, SpOC provides a more complete picture of your patients’ oxygenation status.

Technical Specifications

Optional Kit Configurations

Available in a variety of configurations including RD rainbow patient cables, boots, carrying case, service options, and parameter options of SpCO, SpMet, PVi and SpHb.  Rad-57 is compatible with both single-patient and reusable sensors

Common Kit Configurations

• Rad-57 SpO2 Only – Option for Upgradeable rainbow® Parameters
• Rad-57 Kit with SpCO Option, Adult rainbow® Sensor, RC-01 Cable, and Red Carry Case
• Rad-57 Kit with SpCO Option, Adult and Pediatric rainbow® Sensors, RC-01 Cable, and Red Carry Case
• Rad-57 with SpCO and SpMet Options, Adult rainbow® Sensor, RC-01 Cable, and Red Carry Case
• Rad-57 Kit with SpMet Option, Adult and Pediatric rainbow® Sensors, RC-01 Cable, and Red Carry Case

Individual Accessory Options

• Rainbow RC Cable in 1ft or 4ft length
• Rainbow RD Cable in 5ft length
• Rad-57 Carrying Case
• Rainbow DCI Adult & Pediatric Sensors
• AMCS-II Rainbow DCI8λ SpCO Adult & Pediatric Sensors

Shipping Policy

Last updated: January 19th 2026
At Restful Relaxation, we aim to process and ship orders as efficiently and safely as possible. Please review our shipping policy below before placing an order.

Shipping Promotions
We offer free shipping on select products during promotional periods only.
Free shipping eligibility will be clearly indicated on the product page at the time of purchase.
All other products may incur shipping charges based on size, weight, destination, and carrier rates.

Shipping Methods
Orders are shipped using one or more of the following carriers:
•    USPS
•    UPS
•    FedEx
•    Freight carrier (for oversized or heavy equipment)
The shipping method is selected based on the product’s size, weight, and delivery location.

Order Processing & Shipping Times

Domestic Orders (United States)
•    Orders typically ship within 4–7 business days
•    Processing times may vary during high-volume periods or for specialized equipment
International Orders
•    Customers must contact us prior to placing an international order
•    Shipping availability, costs, and customs requirements vary by country
•    International delivery times are not guaranteed
📧 Contact us before ordering internationally: support@restfulrelaxation.com

Shipping Restrictions
At this time, we do not ship to:
•    P.O. Boxes
•    APO/FPO addresses
•    Alaska
•    Hawaii
•    U.S. Territories
We also cannot ship to certain international destinations due to customs, carrier, or regulatory restrictions.

Tracking Information
Once your order has shipped, you will receive a confirmation email with tracking details.
Tracking information may take up to 24 hours to become active after shipment.

Damaged, Lost, or Delayed Shipments
Please inspect your package immediately upon delivery.
If your shipment is:
•    Damaged
•    Lost
•    Or delayed beyond reasonable carrier timelines
You must contact us within 48 hours of delivery at support@restfulrelaxation.com.
We will assist in:
•    Filing a claim with the carrier
•    Coordinating a replacement where applicable
Carrier investigations may be required before a replacement can be issued.

Delivery Responsibility
Once an order has been shipped and marked as delivered by the carrier:
•    Responsibility transfers to the recipient
•    Restful Relaxation is not responsible for theft, misdelivery, or unattended packages
We strongly recommend ensuring a secure delivery location.

Shipping Accuracy
Customers are responsible for providing accurate shipping information at checkout.
Orders delayed or returned due to incorrect addresses may be subject to:
•    Additional shipping fees
•    Delayed fulfillment
 
Questions About Shipping
If you have any questions regarding shipping methods, delivery timelines, or restrictions, please contact us prior to placing your order.
📧 support@restfulrelaxation.com

Shipping Notice: Due to size and handling requirements, shipping times for oxygen concentrators may vary. Signature confirmation may be required upon delivery.