This is a nice voltage meter that would be easy to make, but I don't know what connector to use for the end that connects to the PV.  Do you cannibalize an atomizer to use for that connector?  Can you buy a female connector?  Is there a gender switcher to turn a male connector into a female connector?
		
		
	
	

	
		
			
		
		
	
			
			
 
				
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		