Helal with Electronics provides the CPR trainee with feedback of their hand position, depth of compressions and ventilations. Electronic mechanisms within the torso and on the chest plate of this manikin indicate when techniques are performed properly:

• Proper hand placement on the sternum - When a hand is placed on the chest in the correct position, a pressure plate under the overlying skin is compressed, closing a circuit to illuminate the “hand position correct” light.
• Adequate ventilation - When sufficient air enters the lung, a magnetically released switch illuminates the “adequate ventilation light.”
• Adequate compression – Sufficient pressure on the chest opens a switch to illuminate the “adequate compression light.”