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| package includes: Head Unit, Relay Box, HDDB15 Communication Cable, PH Probe, Waterproof Temperature Probe, 2 Float Switches, 2 Float Switch Connectors, USB-TTL converter cable  I used this device to monitor temperature and control T5 lights, so the float switches and ph probe are unused.. here is a link to their website: http://www.reefangel.com/ I ordered this one with the PWM booster (never used this function). Bought in August of 2011 so the specs for the device may have changed a bit.. $150.00 | 
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| is this the regular or the + model? | 
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| regular model - it was the only model available at the time.. | 
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| PMed | 
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| replied... | 
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| sale pending... |