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			#1  
			
			
			
			
			
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|   oops!  didn't notice that.. sorry... haha   
				__________________ 180G Office Reef. Started Sept 2012 http://www.canreef.com/vbulletin/showthread.php?t=88894 62G Starfire Reef. Started Jan 2013 http://www.canreef.com/vbulletin/showthread.php?t=89988 | 
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			#2  
			
			
			
			
			
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|   No worries. Thanks for helping.  I still don't know if that one would even work but I want the cheaper one anyways  | 
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			#3  
			
			
			
			
			
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|   I think the only difference is one is a Standard Temp the other is Lab Grade...  they do the same thing with the pH probe (and I'd assume the ORP ones too) 
				__________________ 180G Office Reef. Started Sept 2012 http://www.canreef.com/vbulletin/showthread.php?t=88894 62G Starfire Reef. Started Jan 2013 http://www.canreef.com/vbulletin/showthread.php?t=89988 | 
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			#4  
			
			
			
			
			
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|   I have the Aquacontroller Jr. as well.  The port for the temp sensor on mine is a small version of a phone jack.  Is this the same as a "phono jack" in the description of the "pro" version?   I've gone through two temp sensors over the years and I have found them to be unreliable (on my unit anyways) and I no longer trust them to control fans or heaters any more. I was getting very erratic readings one day 78 the next day 68 causing my heaters to overheat the tank. Could be the controller...as I can't imagine that the sensor would need to be replace very frequently (if at all). My back up electronic thermometer sensor has been working for years. I keep a floating thermometer in the sump just to double check every so often...once bitten. Just my 2 cents. 
				__________________ New!! 150 gal. wt 2 x 250W 10000K MH & 4 T5 Actinics. | 
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			#5  
			
			
			
			
			
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|   my temp probe failed at about 10 mounths with myACJR  i just got J&L to order me a new one it was like $40 with tax |