30 and 40 mm
Maintained or spring return
800FM metal operators
22.5 mm mounting hole
Flush or extended 2-color molded legend caps
Single turn potentiometer
2-, 3-, and 4-position
Mushroom or half-dome
800FP plastic operators
Multi-operators
Illuminated or non-illuminated
Panel mount sounder
Twist-to-release or key release
Plastic or aluminum
Selector or toggle switch
Momentary or alternate action
Pilot light operators
Reset push button
Key selector switches