Advanced life support solutions

HeartStart MRx

Monitor/Defibrillator for emergency care

Product number:


Rugged, reliable, and easy-to-use, the HeartStart MRx with the DXL 12-Lead ECG algorithm, provides industry-leading patient monitoring capabilities, exceptional diagnostic measurements, proven resuscitation therapies, and CPR guidance.

Easy to use, fast to respond
Easy to use, fast to respond

Easy to use, fast to respond

The HeartStart MRx has an easy-to-use interface that helps you respond quickly. Communication and collaboration with your hospital care teams is simple. And when it’s time to hand-off from a HeartStart FR3, you don’t need to change pads.
Built to endure, designed to evolve
Built to endure, designed to evolve

Built to endure, designed to evolve

The HeartStart MRx is built tough—tough enough to endure environmental conditions created by water, vibrations, mechanical shocks, drops, and electromagnetic activity. Plus it’s built on a scalable platform, so you can upgrade easily and take advantage of Philips advancements while retaining the same footprint and weight.
Rich clinical information, driving patient care

Rich clinical information, driving patient care

With the DXL 12-Lead ECG algorithm, the HeartStart MRx gives advanced STEMI decision support. There are predictive tools that show the probability that the patient is experiencing acute ischemia or the likely outcome of AMI. These tools help you make confident decisions to speed triage.


Environmental & physical requirements
Environmental & physical requirements
Solids/Water resistance
  • IP24
Operating temperature
  • 0º - 45º C (32º - 113º F) ° C/° F
Storage temperature
  • -20 - 70º C (-4º - 158º F) ° C/° F
Operating humidity
  • 0% to 95% relative %
Operating altitude
  • 0 to 15000 ft (0 to 4500 m) ft/ m
Storage altitude
  • 0 to 15000 ft (0 to 4500 m) ft/ m
Mechanical shock
  • Bump: IEC 68-2-29
  • Freefall: IEC 68-2-32
Operating vibration
  • MIL STD 810E 514.4 Category 6 Helicopter
General storage vibration
  • UH60 Non-Operating: IEC 68-2-6 Swept Sine Vibration and IEC 68-2-64 Random Vibration
  • Meets EN 60601-1, UL 2601-1/CSA C22.2 No. 601-1
  • TFT color LCD
  • 8.4’’ diagonal (128 mm x 171 mm) "/ mm
  • 480 x 640 pixels (VGA)
Wave Viewing Time
  • 5 seconds (ECG) seconds
  • Truncated Exponential Biphasic.Waveform parameters adjusted as a function of patient impedance.
Output Energy
  • Manual (selected): 1-10/15/20/30/50/70/100/120/150/170/200 Joules into a 50 Ohm loadAED Mode (single energy output): 150 Joules into a 50 ohm load. Joules/Ohm
Charge Time
  • Less than 5 seconds to 200 Joules with a new/ fully charged lithium ion battery at 25º C
Shock Delivery
  • Via multifunction defib electrode pads or paddles
Shock-to-Shock Cycle Time
  • Typically less than 20 seconds
Maximum Patient Impedance Range
  • 180 Ohm Ohm
Minimum Patient Impedance Range
  • 180 Ohm Ohm
AED Mode
  • Shock advisory sensitivity and specificity meet AAMI DF-39 guidelines
Strip Chart Recorder
Strip Chart Recorder
  • Standard: 50 mm (paper width) thermal array printer mm
  • Optional: 75 mm (paper width) thermal array printer mm
Continuous ECG Strip
  • Prints primary ECG lead with event annotations and measurements in real-time or with 10-second delay
Auto Printing
  • Recorder can be configured to print marked events/charge/ shock and alarms
  • Event Summary, 12-Lead/Operational Check/ Configuration/Status Log and Device Information
Paper Size
  • 1.97” (50 mm) W by 100 ft. (30 m) L and 2.95” (75 mm) W by 100 ft. (30 m) L "/ft/mm/m
Noninvasive Blood Pressure
Noninvasive Blood Pressure
Pressure Range(a)
  • Systolic: 40 to 260 mmHg
Pressure Range(b)
  • Diastolic: 20 to 200 mmHg
Initial Pressure
  • Adult: 160 mmHg and Pediatric: 120 mmHg
Maximum Pressure
  • 280 mmHg
Alarm Range(d)
  • Systolic high limit: 30 - 270 (Adult) and 35 - 180 (Pediatric)
Alarm Range(e)
  • Systolic low limit: 30 - 265 (Adult) and 30 - 175 (Pediatric)
Alarm Range(f)
  • Diastolic high limit: 18 - 240 (Adult) and 18 - 150 (Pediatric)
Alarm Range(g)
  • Diastolic low limit: 10 - 240 (Adult) and 10 - 145 (Pediatric)
SpO2 pulse oximetry
SpO2 pulse oximetry
  • 0 to 100 %
  • 0.01 %
Alarm Range(a)
  • Low Limit: 50 to 99% (Adult/Pediatric) %
Alarm Range(b)
  • High Limit: 51 to 100% (Adult/Pediatric) %
Alarm Delay
  • 10 sec
CPR feedback and measurement
CPR feedback and measurement
Compression Depth
  • Target: -1.50 to -2.00" (-38 to -51 mm) "/ mm
Compression Rate
  • Target: 90 to 120 cpm cpm
Ventilation Volume
  • Graphic indicator: empty/one-third full/two-thirds full/full
Ventilation Rate(a)
  • Target for breaths delivered before 60 seconds since last compression: 6 to 16 vpm seconds/vpm
Ventilation Rate(b)
  • Target for breaths delivered beyond 60 seconds since last compression: 9 to 16 vpm seconds/vpm