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In this page, you will learn the key features of Philips Onsite HS1 AED and its standard configuration and optional items.

HeartStart Onsite (HS1) optional items:  
  • Spare SMART Pads
  • Battery
  • Infant/ Child Pads

  • ​Defibrillator inside carry case
  • ​Wall amount
  • Owner’s Manual
  • Battery (one, preinstalled)
  • Set-up/Maintenance guide with expiration date tags
  • Defibrillator 
  • Quick Reference Guide
  • SMART Pads (one, preinstalled)
  • Battery (one, preinstalled)


Standard Configuration

Visual queues
Clear, intuitive icon driven operation

The HeartStart OnSite’s graphics-based visual instructions are designed to communicate instantly, with minimum reading and interpretation. Users not fluent in the device’s language can follow easily.
Integrated SMART pads
​Senses application to patient skin

The pads are "smart" because they can sense that they have been removed from the cartridge and applied to the patient. This helps the HeartStart OnSite know at what point the user is in the response process.
Quick Shock feature
Minimize chest compression interruptions

CPR is even more vital to survival than previously realized. Rapidly delivering a shock after chest compressions is critical. The HeartStart OnSite’s Quick Shock feature reduces the time between hands-off and shock delivery.
Built-in self test
Ready when needed

Your HeartStart OnSite goes through a 120-point test before it leaves the factory. On the job, it conducts self tests every single day, not just weekly. It performs over 80 different tests in all. Even the pads are tested for readiness.
SMART Biphasic therapy
Safely delivers maximum shock strength

Philips SMART Biphasic therapy uses a unique combination of high current - to maximize effectiveness, and a lower energy dose - to minimize side effects that are harmful to a fragile heart.
Guided audio instruction
Talks you through your training

​The HeartStart OnSite provides on-demand audio coaching. Calm, clear voice instructions are tailored to the responder’s actions, providing AED and CPR guidance during the resuscitation of a sudden cardiac arrest victim.
Simple to operate
​Turns on with easy-to-use pull handle

​Every HeartStart OnSite comes ready-to-rescue. The device is pre-installed in the carrying case and battery and pads are pre-installed in the device. Simply pull up the handle on the front of the AED to activate it.

Features