OnSite is designed for the ordinary person in the extraordinary moment. It is easy to set-up and includes automatic Life Guidance features like voice prompts and CPR coaching to help guide you through the treatment of sudden cardiac arrest.
Step-by-step guidance so you know exactly what to do
OnSite has a clean and simple interface that’s easy to use and understand. Its voice instructions guide you through the entire process, from placing the pads, to delivering a shock, to performing CPR. You won’t get lost because the intelligent sensors can detect what step you’re on and adjust to your level of expertise.
Ready to use when you need it
Setting up the OnSite is easy and quick. The pads and battery are already installed. Just pull the green tab to launch the initial self-test. After that, the OnSite performs daily self-tests so you can trust that it is ready-to-go if needed.
Instructions that adapt to your pace
When you place the SMART pads on the victim’s bare skin, they adapt the defibrillator’s instructions to your actions. They follow your pace so they don’t overwhelm, run ahead, or slow you down. If needed, the prompts are repeated or rephrased, sometimes even including additional instructions to help you understand.
Fast shocks to improve treatment success
Since minimizing the time to shock after the last CPR compression may improve survival, shock delivery time is critical. The Onsite is among the fastest in class at delivering shock treatment after CPR*.
Personalized therapy for each patient
Before you can deliver a shock, the OnSite automatically checks to make sure a shock is necessary and that the right therapy is given. If you install the infant/child SMART Pads, the defibrillator will automatically adjust to a lower energy level and modify the coaching instructions to provide infant/child CPR.
Easy to train your team
The OnSite easily converts to a training unit when you attach training pads—no need to purchase separate equipment to practice rescue scenarios with your team. These special pads prevent the defibrillator from delivering a shock and activate its training mode which includes eight different emergency scenarios.
9 volt DC, 4.2 Ah, composed of disposable long-life lithium manganese dioxide primary cells
Minimum 200 shocks or 4 hours of operating time (EN60601-2-4:2003)
Battery is labeled with an install-by date of at least five years from date of manufacture
Four years typical when battery is installed by the install-by date. (Will power the AED in standby state within the specified Standby Temperature range, assuming one battery insertion test and no defibrillation uses)
Defibrillator, battery (one, pre-installed), SMART Pads (one set, pre-installed), set-up/maintenance guide with expiration date tags, owner's manual, quick reference guide
SMART Truncated exponential biphasic. Waveform parameters adjusted as a function of patient impedance
Defibrillation peak current - Adult
32 A (150 J nominal) into a 50 ohm load
Defibrillation peak current - Pediatric
19 A (50 J nominal) into a 50 ohm load (using optional infant/child SMART Pads Cartridge)
Shock-to-Shock Cycle Time
Typically less than 20 seconds between shocks in a series
Able to deliver a shock after the end of a CPR interval, typically in eight seconds
Detailed voice messages guide responder through use of the defibrillator
Instructions for adult and infant/child CPR available at user selection
Via adhesive pads placed on patient's bare skin as illustrated on pads
Green SMART Pads cartridge handle, green On/Off button, blue i-button, orange Shock button
Ready light, blue i-button, caution light
Solid objects per EN60529 class IP2X; Drip-proof per EN60529 class IPX1
0 - 50 °C (32 - 122 °F)
0 - 43 °C (32 - 109 °F)
0 to 95 % relative humidity (non-condensing)
0 to 75 % relative humidity (non-condensing)
0 to 4,500 m (0 to 15,000 ft)
> 48 hours from 0 to 8,500 ft and <48 hours from 8,500 to 15,000 ft
Shock/Drop Abuse Tolerance
Withstands 1 meter drop to any edge, corner, or surface
Meets EN1789 random and swept sine, road ambulance specification in operating and standby states
Meets EN55011 Group 1 Level B Class B and EN61000-4-3
Adult: nominal 150 joules into a 50 ohm load; Infant/Child: nominal 50 joules into a 50 ohm load
Disposable cartridge, containing adhesive defibrillation pads, clicks into defibrillator for an integrated pads solution
Active Surface Area
85 cm² (13.2 in²) each
Adult pads: 137 cm (54"); Infant/Child pads: 102 cm (40")
Cartridge is labeled with a use-by date of at least two years from date of manufacture
Training pads (optional)
Special pads put HeartStart OnSite into training mode and disable its energy delivery capability. Training pads feature 8 real-world training scripts. Use with training mat (included) or with adapters on manikins
*”Shortening the interval between the last compression and the shock even by a few seconds can improve shock success (defibrillation and ROSC)” – American Heart Association. American Heart Association Guidelines for Cardiopulmonary Resuscitation and Emergency Cardiovascular Care. Circulation. 2010;122 (suppl 3): S706-S719.
** The Infant/Child pads cartridge is sold separately, and available only under the order of a physician, by prescription only
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