Does anybody have any experience making their mods fire automatically?  I was hoping to make my mod an automatic by using a differential pressure switch. 
If anybody knows where to find a (non-behemoth) differential pressure switch I would be very grateful.
Or if you have any other suggestions, I would love to hear them too.
Thanks.
	
		
			
		
		
	
			
			If anybody knows where to find a (non-behemoth) differential pressure switch I would be very grateful.
Or if you have any other suggestions, I would love to hear them too.
Thanks.