With Thumb Rotary Switches, a character dial is turned to switch an actuator and set a value. They are also called digital switches. OMRON provides many models with different sizes and operation methods.
There are 4 products of Thumbwheel Switches.
            
            
               Thumbwheel Switch
            
            
                A7D / A7DP
            
        
    Ultra-small, Low-cost, Push-operated Switches
            
            
               Thumbwheel Switch
            
            
                A7CN / A7CN-L
            
        
    A Brand New Lineup of A7C Series Compact Thumbwheel Switches
            
            
               Thumbwheel Switch
            
            
                A7BS / A7BL
            
        
    Wide Range of Locking-type Models Available
            
            
               Thumbwheel Switch
            
            
                A7PS / A7PH
            
        
    Dust-tight, Easy-to-Use, Push-operated Switches with Large Display Characters