DFS400 AED / Defibrillator Tester
DFS400 AED / Defibrillator Tester

AED/Defibrillator Tester

Designed for R&D and QA departments, the AED tester integrates multiple needed testing equipment and functions. With its dedicated software, test data such as the shock waveform, energy (in Joules), parameters, and characteristic points are displayed on one screen and automatically saved to establish a comprehensive test history.
Moreover, it offers switchable loads to evaluate AED shock performance across different scenarios and allows comparison of multiple shock waveforms through the Repeatability and Reproducibility Analysis, ensuring consistent AED quality and reliability.
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User ManualUser Manual


  • Intuitive software interface with shock-related information on one screen – the waveform, energy (in Joules), parameters, and characteristic points captured at a sampling rate of 4μs
  • Automatically saves complete raw data of the shock waveform to establish a test history
  • Outputs ECG waveforms with selectable adult and child modes to achieve high accuracy for testing
  • Raw data playback – plays recorded raw data or customized waveforms for repeated verification to facilitate the development process
  • Built-in switchable loads ranging from 25Ω to 200Ω
  • Repeatability and Reproducibility Analysis – compares the shock waveforms of multiple DUTs or a single DUT to confirm the consistency of quality and reliability, facilitating conducting the endurance test described in IEC 60601-2-4*
  • Provides software development kit (SDK) for developing automated testing programs

*Note: The Repeatability and Reproducibility Analysis needs a separate purchase.


AED Testing Scenario



Defibrillator Testing Scenario



Energy Measurement Specifications

Maximum EnergyRange: Up to 600J
Accuracy: ± 1% of reading ± 1J for up to 360J; ± 1% of reading ± 1J, typical for 360J ~ 600J
VoltageRange: Up to 3000V
Accuracy: ± (1% of reading + 1V) for 450V ~ 3000V & -450V ~ -3000V; ± (1% of reading + 2V) for -450V ~ 450V
CurrentRange: 1.2 ~ 100.0A
Accuracy: ± (1% of reading + 0.1A)
Load ResistanceResistance: 25, 50, 75, 100, 125, 150, 175, 200Ω
Energy Accuracy

For 50Ω:
±1% of reading ±0.1J for up to 360J; ±1% of reading ±0.1J, typical for 360J ~ 600J

For other resistance:
±2% of reading ±0.1J for up to 360J; ±2% of reading ±0.1J, typical for 360J ~ 600J

Note: Maximum energy of monophasic defibrillation may not reach 360J.

Pulse WidthRange: 1.0 ~ 48.0ms
Accuracy: ±0.05ms
Sample Rate250kHz (4μs sample)
Maximum Average Power24W, equivalent to 1 defibrillation pulse of 360J every 15 seconds


ECG Signal Specifications

Ventricular Fibrillation - CoarseVp-p = 3mV
Ventricular Fibrillation - FineVp-p = 0.5mV
Ventricular Tachycardia (≒180BPM)Vp-p = 3mV
Ventricular Tachycardia Plus (≒234BPM)Vp-p = 3mV
Atrial FibrillationVp-p = 1.2mV
AsystoleVp-p = 0.03mV
Normal Sinus Rhythm (NSR)
(20 ~ 360BPM by 1BPM per step)
Vp-p 0.5 ~ 5.0mV, step 0.5mV
User-defined Pattern
(Max. 5kHz Sample Rate)
• Load Customized Waveform function: Load a total capacity of up to 1000 seconds of raw data files with variable duration for each file to the DFS400 memory.
• Play Data function: Directly select and play raw data files stored on the computer with no file size limitations.
RCA Output Amplitude Range1:875
RCA Output Amplitude Accuracy<7.5% Vpp, Typical ±5% Vpp


General Specifications

TemperatureOperating: 0°C ~ 50°C (32°F ~ 122°F)
Storage: -20°C ~ +60°C (-4°F ~ +140°F)
Humidity10% ~ 90% non-condensing
CommunicationsUSB Type-C connector
Operation ModesRemote (PC Software via API and SDK)
PowerDC12V Power Adaptor
MechanicalHousing: ABS Plastic
Size (L x W x H): 24.0 x 24.0 x 6.0cm
Weight: 1.6kg


Compliance Specifications

Safety StandardsCE: IEC / EN 61010-1:2010 + A1:2016; Pollution degree 2
Electromagnetic Compatibility Standards (EMC)CE: EN61326-1


*Specifications are subject to change without prior notice.

Ordering information

DFS400 Test System

Part No.ImageDescriptionQuantity



Model No.: DFS400 
Model Name: AED/Defibrillator Tester 
Package contents: 
• DFS400 x 1 
• DC12V power adaptor x 1 
• Open-ended AED cable (Banana Male, 0.5 meter, Black) x 1 
• Open-ended AED cable (Banana Male, 0.5 meter, Red) x 1 
• Compact splicing connector x 2 
• USB transfer cable: Type-A to Type-C (Male to Male, 1.8 meter) x 1


Optional Accessories

Part No.ImageDescriptionQuantity
S92-0204021DC12V Power Adaptor1

Open-ended AED Cable (Banana Male), 0.5 meter (Black)1

Open-ended AED Cable (Banana Male), 0.5 meter (Red)1

Compact Splicing Connector1

USB Transfer Cable: Type-A to Type-C (Male to Male), 1.8 meter1


Optional Paddle Box Set

Part No.ImageDescriptionQuantity

DFS Tester Docking Base for Defibrillator1

DFS Tester Defibrillation Receiving Plate2
K22-0100301AED Cable for Paddle Box, Female to Male (Black)1
K22-0100201AED Cable for Paddle Box, Female to Male (Red)1


Optional Tool

Part No.ImageDescriptionQuantity

Scan Software and Barcode Scanner
(Argox barcode scanner, model no. AS-9400)


Optional Software Add-On Pack

Part No.Description
HE0-DF00001Repeatability and Reproducibility Analysis for inspecting DUT's quality and performance


Optional Calibration Service and Warranty Extension

Part No.Description
YY0007Model No.: C3
Provides (3) years of calibration service coverage. WhaleTeq equipment can be calibrated to original performance on the basis of (1) year interval.
YY0008Model No.: R3
Extends the limited warranty from (1) year to (3) years.
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