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					Originally Posted by andestang  Don't they need a USB adapter ? I went to buy a Apex probe for a Pinpoint controller but was told by J&L Apex has a USB style plug instead of the universal round end on probes. ?? | 
	
     You need another module if running more than one probe plus an ORP. There are 2 ph ports otherwise if no ORP is used.  As mentioned they are round exactly the same as a Pinpoint connection.