Execution Standard:  Adheres to the American Heart Association (AAHA) 2020 International Guidelines for 

Cardiopulmonary Resuscitation (CPR) & Emergency Cardiovascular Care (ECC);

Features:

1. Upon the first correct chest compression, all three indicator lights on the left shoulder of the manikin 

will illuminate, indicating that the device is functioning correctly and the battery power is sufficient.

2. If the lights do not illuminate, please confirm the compression depth (a clear "click" sound will be 

heard at the correct depth). If the student does not operate correctly, the lights will not illuminate.

3. Once compression begins, the yellow and red lights will turn off, and the green light will turn on.

4. If the compression depth is correct, the green light will illuminate (accompanied by a "click" sound).

5. If the compression depth is insufficient, the yellow light will illuminate, indicating that more force is 

needed.

6. After the operation is completed, the yellow light will flash (for 10 seconds), then the red light 

will illuminate, and the model will enter sleep mode to save power.

7. Operation Frequency Control:

Compression frequency below 80 times/minute: one yellow light flashes;

Compression frequency between 80-100 times/minute: one green light flashes;

Compression frequency between 100-120 times/minute: two green lights illuminate;

Compression frequency above 120 times/minute: two green lights illuminate and one yellow light;

8. Artificial Respiration:  Visible chest rise and fall can be observed during artificial respiration.