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Do not base your order on the picture presented.
Simple and accurate feedback! Select one of the four modes (compression rate, compression depth, ventilation duration, ventilation volume) by pushing indicator switch. Red light indicates improper hand placement, yellow light signals proper compression depth of 1.5-2.0 inches adult/1.0-1.5 inches child. Green light signals proper ventilation volume at 0.80 liters adult/0.50 liters child. The performance of each skill is displayed separately while averages are stored in the memory. Designed to automatically switch between the compression and ventilation modes depending on which one is being applied.
Three-color light controller indicates acceptable levels. Red flashing light indicates improper hand placement, green flashing light indicates proper ventilation volume, and yellow flashing light indicates proper compression depth. Child CPR can be practiced by changing the compression springs and flipping the switch on the light controller. No LCD screen to display averages. Includes four “C” batteries.