870.2840—Apex cardiographic transducer.
               		
               		
               	 	
               	 	
               	 	
               	 		
    
        
        (a) Identification.
         An apex cardiographic transducer is a device used to detect motion of the heart (acceleration, velocity, or displacement) by changes in the mechanical or electrical properties of the device.
     
    
        
        (b) Classification.
         Class II (performance standards).