HeartStart HS1 AED


  • Guides you through every step
    Just pull the green handle to activate your OnSite defibrillator, and voice instructions will guide you through the entire process – from placing each pad on the patient to performing cardiopulmonary resuscitation (CPR) and delivering a defibrillation shock.¹ It even guides you on the frequency and depth of chest compressions, as well as breaths.¹
  • Ready to use the moment it arrives
    With OnSite’s Ready-Pack configuration arrives virtually ready to use. – Arrives with the SMART Pads cartridge and battery already installed – Is positioned inside the carry case with a spare SMART Pads cartridge in place – Just pull the green tab to launch the initial self-test – Conducts a series of automatic self-tests daily, weekly, and monthly, including testing the pads
  • Use OnSite to train
    You can install a special pads cartridge that temporarily turns your OnSite defibrillator into a trainer. Also available are a collection of videos that describe every aspect of the defibrillator.
  • Easy as 1-2-3
    When you observe someone suffering from a suspected SCA, you should act quickly. We’ve equipped OnSite with integrated SMART Pads. Just place the SMART Pads on the person’s bare skin, and they will provide feedback to the AED so it can adapt its voice instructions to your actions and your pace. The SMART Pads sense when they have been placed on the patient and when you’ve completed each step. The system won’t announce the next step until you are ready. Prompts are repeated and rephrased, and include additional instruction to aid understanding.




Enquiry Now


HeartStart OnSite HS1 AED

With access to the right equipment, training and support, you can help save a life. Philips HeartStart OnSite defibrillator guides you through the process of treating a victim of suspected sudden cardiac arrest.¹ The OnSite AED provides real-time guidance through step-by-step voice commands and CPR guidance.

Download Brochure


Heartstart HS1 AED Accessories

Philips SMART Biphasic therapy

Philips SMART Analysis AED algorithm

HeartStart Home Owner’s Manual



  • What is a sudden cardiac arrest (SCA)?
    SCA is a sudden and unexpected abnormality of the heart’s electrical system which causes the heart to stop beating normally. When one occurs, blood stops flowing properly and the person collapses. The only way to restore their heart rhythm is by administering a shock immediately. Anyone can deliver the shock using an AED.
  • Is an SCA the same as a heart attack?
    No. A heart attack (myocardial infarction) occurs when the heart’s blood supply is reduced or blocked. The heart muscle becomes injured or may start to die. During a heart attack, the victim is conscious. In fact, the victim may complain about symptoms.
    An SCA is an electrical problem in the heart which causes the heart to beat in an irregular, inefficient manner. Since the blood can’t circulate to the brain, the victim passes out.
    A heart attack victim has a pulse but an SCA victim does not.
    You don’t have to remember these distinctions. When the AED instructs you to put the pads on the victim, it will sense the heart rhythm and determine the best steps to take, giving you guidance all along the way.
  • What is defibrillation?
    Defibrillation is giving an electric shock to the heart. The shock resets the heart’s electrical system and allows a normal heart rhythm to return.
    An automated external defibrillator (AED) is a device that delivers that shock. It analyses the heart rhythm and if necessary, provides instructions on how to deliver it.
  • When should I use an AED?
    If a person collapses or loses consciousness, and either doesn’t have a pulse or isn’t breathing properly, you need to intervene. Even if he or she is gasping for breath or having seizures, if the person is unconscious, use the AED.
    Don’t worry about diagnosing the victim correctly. The Philips AED will analyse the heart rhythm and tell you to deliver a shock, if and only if the victim needs it. All you need to do is open the AED and follow the clear, calm voice instructions. You’ll be told how put the pads on the victim so the machine can detect the heart rhythm.
  • How do I know how to use an AED?
    Philips AEDs are designed to be very simple to use. Once you open the AED, a clear, calm voice walks you through the entire rescue process as you do it—at your own pace. The device can tell what step you’re on and will adjust its instructions accordingly.
    The most important thing you need to do is act. If there is an AED nearby, find it and open it. The heart needs to be restored to a normal rhythm within 3 – 5 minutes for the best chance of survival.
  • Can I hurt someone?
    No, not if you follow the instructions from the AED. AEDs are designed to help people whose hearts have stopped working effectively. If the AED instructs you to deliver a shock, the person you are helping is already clinically dead. Your actions can only help. You may be able to restore a healthy heart rhythm.
  • What if I do it wrong?
    The AED is designed to tell you exactly what you need to do. It keeps pace with what you are doing and adapts its instructions so that it doesn’t overwhelm, run ahead, or slow you down. If necessary, it will repeat the prompts, rephrasing them or adding additional instruction to help you understand.
  • Can I shock myself using an AED?
    Not if you follow the instructions. The device will tell you the basic precautions you must take to avoid getting shocked.
  • Why not just wait for professional responders to arrive?
    The best chance to survive a sudden cardiac arrest is if the person is shocked within 3 – 5 minutes. Often, emergency responders can’t arrive within that small time frame.
  • Do I need to get training to use an AED?
    Philips AEDs are designed so that anyone can use them immediately. However, training is still a good idea. The more familiar you are with the signs of a SCA and the use of the AED, the more likely you are to be calm and helpful in an actual emergency.
  • Do I need to get training to use an AED?
    Philips AEDs are designed so that anyone can use them immediately. However, training is still a good idea. The more familiar you are with the signs of a SCA and the use of the AED, the more likely you are to be calm and helpful in an actual emergency.
Go to Top