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Welch Allyn AED 20

Welch Allyn AED 20

SKU: P/0220/E/W/0195/S
Certified Used
1-year Limited Warranty
Regular price
Sold out
Unit price
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The Welch Allyn AED 20 defibrillator offers safe, easy-to-use defibrillation of cardiac patients in a prehospital setting with BLS users. Simple 1-2-3 operation and extensive voice, visual, and audible prompts streamline the entire defibrillation process and put users at ease in stressful situations. Manual Mode available for ALS users.

This AED delivers up to 360J via two pre-gelled, self-adhesive electrode pads. In AED Mode, the Welch Allyn AED 20 will determine if a shock is needed and automatically arm the Shock button. Users can take advantage of three pre-programmed Shock Sequences.

Manual Mode unlocks greater control over the energy level of each shock and when shocks are delivered.

This lightweight, tough, unit is the perfect solution for administering potentially lifesaving prehospital therapy to a cardiac patient. Easy to use, with a clear and simple to navigate interface, you'll never be sorry to have this on hand for emergencies.


  • AED Mode easily guides BLS users safely and effectively through the defibrillation process
  • Can deliver up to 360 Joule shocks
  • Automatically analyzes the patient’s heart rhythm and decides if there is a shockable rhythm or not
  • Automatically arms the Shock button, when necessary.
  • Extensive voice & visual prompting help walk the user through a stressful defibrillation process
  • Data transmission by serial port via RS-232 to PC and printer
  • Tough and transport-ready for easy treatment of cardiac patients
  • Rugged, splash-proof design protects the unit when operating in wet conditions.
  • Data Capacity: 1 MB; 250 4-sec ECG samples; 3000 time-stamped events
  • ECG trace in automated mode and shows a biphasic defibrillation waveform
  • AED or Manual Mode

Why choose A Biomedical Service as your Refurbishing Partner?

Beyond significant cost savings and a sound capital equipment investment strategy, A Biomedical Service believes your patients and medical staff deserve access to the highest quality, most reliable medical equipment. We're committed to delivering the level of excellence your facility needs to achieve its patient care and asset management goals.

We aren't simply your refurbishment company, we're your partners in managing capital equipment investment along every step of a piece of equipment's lifecycle.

Refurbished Equipment vs. Certified Used

What's the difference between a piece of used medical equipment that's been refurbished compared to one that's certified used?

Refurbished equipment and certified used equipment are both thoroughly cleaned and sterilized. Their sensitive data is properly disposed of and we make sure the equipment works the way the original manufacturer intended it to perform.

Refurbished Medical Equipment

A machine that's Refurbished goes through a rigorous process that takes each piece of equipment back to the original OEM specifications. Our in-house biomedical engineers are certified, experienced, and the best in the business.

Every item that needs to be restored is torn down to its component blocks, fully tested, and visually inspected. Using OEM parts, highly-trained Biomed engineers identify and replace components that have failed or are likely to fail. Think of it as a tuneup for used medical equipment.

If there's any damage to the case, it will be repainted or replaced. After reassembly, every unit is tested to make sure it meets stringent manufacturer requirements.

Certified Used Medical Equipment

Certified Used machines are also cleaned and sterilized. Their sensitive data is secured and legally disposed of. Our talented BMETs perform a series of thorough preventative maintenance procedures and test the units to make sure they meet OEM standards for operation. In this case, not all replacement parts may be OEM, however, the units will still reliably perform to original manufacturer specifications.

Need to sell your old medical equipment?

A Biomedical Service is always looking to buy used or pre-owned medical equipment. We have a friendly, experienced purchasing department that would love to help walk you through the asset disposal process.

Our goal is to make the asset end-of-lifecycle process as painless as possible, get you the best price for your equipment, and help you dispose of unwanted medical equipment in an ecologically responsible way.

If you're interested in selling your used medical equipment to A Biomedical Service, contact us here or give us a call at +1-800-910-1422, Monday through Saturday, 8 AM - 6 PM PDT. We look forward to talking to you!



Refurbished & Used Certified with a Limited 1 year warranty


  • Height: 3.3 in (8.4 cm)
  • Width: 8.9 in (22.6 cm)
  • Depth: 9.4 in (23.9 cm)
  • Weight: 5.4 lbs (2.45 kg)


  • AED Mode: Provides inexperienced BLS users with the necessary tools to provide lifesaving treatment. Calm, clear voice, message, and audible prompts help the user throughout the entire defibrillation process with ease. Targeted toward prehospital treatment. Unit automatically determines if a shockable situation exists and arms the Shock button without user help.
  • Manual Mode: Provides more experienced ALS users with the necessary tools to provide advanced lifesaving treatment on-scene and enroute to the hospital. Allows ALS users to have more control over rate and intensity of shocks.


  • Internal Battery Type 1: NiMH 12V, 2.1 Ah, Rechargeable
  • Charge Time, Battery 1: 1.5-2.5 hr
  • Internal Battery Type 2: Lithium 12V, 5.2 Ah, Non-Rechargeable
  • Capacity, Battery 1: 80 discharges at 360 Joules or; 120 discharges at 200 Joules or; 150 discharges at 150 Joules or; 3 hours ECG monitoring
  • Capacity, Battery 2 (AED Mode): 200 discharges at 360 Joules or; 285 discharges at 200 Joules or; 300 discharges at 150 Joules or; 6 hours ECG monitoring


  • Type: EL Backlit Monochrome LCD
  • Size: 5.7" (14.5cm) diagonal
  • Resolution: 320 x 240 px
  • Frequency Response: 0.5-40 Hz
  • Heart Rate: 20-300 bpm, user-configurable
  • ECG Sweep Speed: 25 mm/sec
  • Low Battery Indicator: Battery Icon gauge on display with 10 capacity levels


  • Waveform: MRL Orbital Biphasic Truncated Exponential
  • Output Energy Sequence: Shock 1: 150J, 200J; Shock 2: 150J, 200J, 300J; Shock 3: 150J, 200J, 300J, 360J
  • Analysis & Charge Time to Maximum Energy: Charge times with a fully charged device: From power up (<30 sec with a battery depleted by 15 maximum-energy shock discharges
  • Analysis Time: 12-16 sec
  • Prompts: Audible: Minimum of 20; Visual: Minimum of 13 text screen prompts
  • Controls: 2 buttons - On/Off, Discharge; 4 software-configurable buttons


  • Memory Type: Internal digital memory and Welch Allyn Datacard
  • Internal Memory Capacity: 1 MB; 75 4-sec ECG samples; 500 time-stamped events
  • Datacard Capacity:4MB - 90 min of Continuous ECG/40 min of ECG and audio; 8MB - 3 hrs of Continuous ECG/80 min of ECG and audio; 16MB - 6 hrs of Continuous ECG/2.5 hrs of ECG and audio
  • Quick Report: Treatment Summary, Event Log, Test Log
  • Communication: Serial port via RS-232 to PC and printer


  • Operating Temperature: 0 to 50˚C
  • Relative Humidity (Operating): Up to 95%, non-condensing
  • Altitude: -500 to 15,000 feet (-150 to 4570 m)


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