1. Simulating standard open airway
2. External breast compression: display device and alarm device

a. indicator light display of correct and wrong compression; alarm of wrong compression

b. intensity display of correct (1-2cm) or wrong(<1-2cm); alarm of wrong compression

3. Artificial respiration (inhalation): display device and alarm device

a. Inhalation <30ml-50ml or >50ml, wrong indicator light diaplay and alarm prompting; inhalation between 30ml-50ml right indicator light display

b. Inhalation too quickly or too much result in air entering into stomach ,indicator light display and alarm prompting

4. Ratio of compression and artificial respiration : 30:2 (one person) or 15:2(two persons)

5. Operating cycle: one cycle includes five times of 30:2 or15:2 ratio of compression and artificial respiratory
6. Operation frequency: 100 times per minute (the latest international standard)

7. Operation methods: exercise operation; examine operation

8. Examination of brachial artery response: pinch the pressure ball by hand and simulate the brachial artery pulse

9. Working condition : output power is 6V transformed from 220V external power through manostat or direct current of four No.1

batteries ,suitable for outdoor operation.