Product details
Philips HeartStart OnSite Defibrillator M5066A
Device overview & verified specifications
Typical adult therapy: nominal 150 J. Philips OnSite voice coaching guides pad placement and CPR. Standard OnSite dimensions: approximately 7.2 × 19 × 21 cm; device with battery and pads about 1.5 kg.
Philips device-family reference
- Device family: HeartStart OnSite / HS1 / Home
- Adult treatment pads: Adult SMART Pads cartridge M5071A
- Pediatric treatment pads: Infant/Child SMART Pads cartridge M5072A
- Battery: Long-life M5070A battery
- Guidance: Voice prompts and CPR coaching; follow device prompts
- Adult therapy: 150 J nominal; device determines shock recommendation
These specifications describe the AED family. Confirm the exact item, firmware and accessory labeling before use.
Before an emergency
- Read the supplied Philips owner’s manual and the AED’s intended-use information.
- Verify the correct treatment pads, battery and expiration dates; inspect the AED ready/status indicator.
- Place the AED in an accessible, marked location and follow the manufacturer’s periodic maintenance instructions.
- For an emergency, call local emergency services, start CPR as trained, switch on the AED and follow its voice prompts. Keep everyone clear during rhythm analysis and shock delivery.
Training pads are not for patient treatment. Pediatric setup differs by AED model; consult the official manual.
Product details
Product description: Designed for the ordinary person in the extraordinary moment, Philips HeartStart OnSite AED is ready to act and virtually ready to go. It allows anyone with little or no training to treat the most common cause of suspected sudden cardiac arrest (SCA) by delivering a shock quickly and effectively, wherever SCA happens. The OnSite automatedexternal defibrillator provides practically real-time guidance through step-by-step voice commands from pad placement to performing CPR. When every minute counts, Philips
HeartStart OnSite defibrillator is the partner by your side. Side by side. Step by step.
• Is virtually ready to use the moment it arrives
• Guides you through every step with voice commands, from pad placement to performing CPR to frequency and depth of chest compressions and breaths
• Can be converted as a trainer with installation of SMART Training Pads cartridge
• Conducts a series of automatic self-tests daily, weekly and monthly, including testing the pads
• Includes: OnSite Defibrillator, 1 pre-installed Battery, 1 set pre-installed SMART Pads Cartridge, user-selected Carry Case, Quick Set-up Guide, Maintenance Booklet, Quick
Reference Guide, Owner’s Manual, 8-yr warranty for AED, 4-year warranty for Battery, Pads are warranted until expiration date. Other accessories include 1-year warranty.
• Please contact Philips directly with any questions regarding the performance or operation of your HeartStart Products. Replacements are permitted for warranty purposes only.
The Philips HeartStart OnSite Defibrillator (Model M5066A) is a user-friendly Automated External Defibrillator (AED) designed to provide fast, effective treatment during sudden cardiac arrest emergencies. Engineered with simplicity in mind, this device is ideal for use in homes, workplaces, and public spaces, allowing both trained and untrained rescuers to confidently deliver life-saving defibrillation when every second counts.
Equipped with clear, calm voice instructions and intuitive visual cues, the HeartStart OnSite guides users through each step of the process, from pad placement to shock delivery and CPR support. Its advanced SMART analysis technology quickly assesses heart rhythms and determines if a shock is needed, ensuring safe and appropriate therapy.
The device’s compact and lightweight design makes it easy to carry and deploy, while its long-life battery and self-tests ensure the defibrillator is always ready to perform. The durable, splash-resistant casing withstands various environments, making it suitable for both indoor and outdoor use.
Compatible with Philips SMART Pads that combine electrodes and connectors into one cartridge, the HeartStart OnSite facilitates fast pad replacement and maintenance. With rapid shock delivery and real-time CPR coaching, this AED maximizes the chances of survival and supports effective resuscitation efforts in critical moments.

Verified model-family accessories & replacement parts
Select the correct device model and part number. Clinical electrode pads are different from reusable training pads; do not interchange them.
Official Heartstream documents and instructional videos
Manufacturer resources for this AED model family. Follow the device-specific instructions and check the exact model and language before use.
Official HeartStart OnSite product page ↗OnSite product brochure (PDF) ↗OnSite accessories brochure (PDF) ↗OnSite setup and maintenance videos ↗Manufacturer manuals & learning resources
Philips OnSite Owner’s Manual (PDF)Open Philips resource ↗Philips AED setup and maintenanceOpen Philips resource ↗Philips OnSite product specificationsOpen Philips resource ↗Videos already associated with this product
Shop compatible parts & useful related items
These items are listed separately on EMRN. Check the exact AED or trainer model before ordering. A link does not mean the accessory is included with this product.
Common Questions & Answers
Quick answers about the exact product, options and ordering at EMRN Medical Supplies.
What is Philips HeartStart OnSite Defibrillator M5066A?
Shop Philips HeartStart OnSite Defibrillator M5066A. See Philips model details, compatible accessories and ordering options at EMRN Canada.
Which replacement pads and battery fit the HeartStart OnSite/Home AED?
OnSite/Home devices use the M5071A adult pads cartridge, M5072A infant/child cartridge, and M5070A battery. Confirm the device model before purchasing.
Where can I find instructions or product documents for Philips HeartStart OnSite Defibrillator M5066A?
See the Documents & Resources or Instructions tab on this page for existing linked PDF material. Check that the document matches your exact product and configuration before use.

















