Hey Brandon,
I lifted this from the manual (http://www.neptunesystems.com/wp-content/uploads/2013/11/Comprehensive-Reference-Manual-.pdf">http://www.neptunesystems.com/wp-content/uploads/2013/11/Comprehensive-Reference-Manual-.pdf</a>)
[QUOTE=]
<span style="font-family: sans-serif">Getting Started </span>
<span style="font-family: sans-serif">Apex vs. Apex Lite</span>
<span style="font-family: sans-serif">
The</span><span style="font-family: sans-serif"> Apex </span><span style="font-family: sans-serif">AquaController</span><span style="font-family: sans-serif"> and the </span><span style="font-family: sans-serif">Apex Lite </span><span style="font-family: sans-serif">AquaControll</span><span style="font-family: sans-serif">er</span><span style="font-family: sans-serif"> share the exact same cases, run the exact same </span>
<span style="font-family: sans-serif">software and are compatible with the exact same accessories. There are two differences between the Apex and </span>
<span style="font-family: sans-serif">the Apex Lite:</span>
<span style="font-family: sans-serif">The Apex base unit supports 3 probes (Temp, </span><span style="font-family: sans-serif">pH, and pH</span><span style="font-family: sans-serif">/ORP). The </span><span style="font-family: sans-serif">Apex</span><span style="font-family: sans-serif">Lite only </span><span style="font-family: sans-serif">supports </span><span style="font-family: sans-serif">2 (Temp, </span><span style="font-family: sans-serif">pH</span><span style="font-family: sans-serif">).</span>
<span style="font-family: sans-serif">The Apex </span><span style="font-family: sans-serif">has</span><span style="font-family: sans-serif"> 4 variable voltage ports that can be used for </span><span style="font-family: sans-serif">controllable </span><span style="font-family: sans-serif">pumps (i.e. Tunze</span><span style="font-family: sans-serif">) or</span><span style="font-family: sans-serif"> dimmable</span><span style="font-family: sans-serif"> lighting (i.e.</span><span style="font-family: sans-serif">LED lighting or</span><span style="font-family: sans-serif"> VHO ballasts). The </span><span style="font-family: sans-serif">Apex </span><span style="font-family: sans-serif">Lite has no variable voltage por</span><span style="font-family: sans-serif">ts.</span><span style="font-family: sans-serif">To give the Apex Lite </span><span style="font-family: sans-serif">similar</span>
<span style="font-family: sans-serif">capabilities as the Apex, you would need to purchase </span><span style="font-family: sans-serif">additional modules to support </span><span style="font-family: sans-serif">variable speed ports (VSP) and additional probes. </span><span style="font-family: sans-serif">For </span><span style="font-family: sans-serif">VSPs</span><span style="font-family: sans-serif"> you can purchase</span><span style="font-family: sans-serif"> the </span><span style="font-family: sans-serif">VDM module</span><span style="font-family: sans-serif"> which has 4 VSP’s </span><span style="font-family: sans-serif">and support for Aqua Illumination (AI)</span><span style="font-family: sans-serif"> Sol</span><span style="font-family: sans-serif"> LED fixtures</span><span style="font-family: sans-serif"> and various Acan Lighting fixtures. For probes, you would </span><span style="font-family: sans-serif">need</span><span style="font-family: sans-serif"> a </span>
<span style="font-family: sans-serif">probe expansion module</span><span style="font-family: sans-serif"> ( </span><span style="font-family: sans-serif">PM,</span><span style="font-family: sans-serif"> PM2</span><span style="font-family: sans-serif"> or PM3</span><span style="font-family: sans-serif"> depending on the probes you want</span><span style="font-family: sans-serif">). The Apex is typically </span><span style="font-family: sans-serif">bundled with the base unit, </span><span style="font-family: sans-serif">a</span><span style="font-family: sans-serif"> display module, a single EB8 and two probes (temp and </span><span style="font-family: sans-serif">pH</span><span style="font-family: sans-serif">). The </span><span style="font-family: sans-serif">Apex </span><span style="font-family: sans-serif">Lite is </span><span style="font-family: sans-serif">bundled the same except </span><span style="font-family: sans-serif">with</span><span style="font-family: sans-serif"> a single</span><span style="font-family: sans-serif"> temp probe. Of course, you can purchase any of the modules or probes </span>
[/QUOTE]Here's a link to the forum, it has a lot of good ideas. You should be able see some possiblites of what it can do... ( I hope that I'm allowed to post here- [IMG]http://forum.neptunesystems.com/forum.php">http://forum.neptunesystems.com/forum.php</a>). I think there was someone who integrated one into their home-brew set up!
I got the Apex Lite, I in hindsight I wish that I had gotten the full unit. It is possible to buy separate modules, piece by piece.