ph contoller

In good condition. Used only for one refill. $165 shipped.

Bluelab pH controller. Used in good condition, includes temp probe and power supply. No pH probe. $180 shipped Bluelab pH Guardian Monitor connect wireless. Used In good condition. Includes temp probe and power supply. No pH probe or wireless receiver. $160 shipped

I have a Kore 7th with a KHLab for automatic Alkalinity test with pH probes. The manual says A single pH probe from Pacific Sun is 90€ ($109 + shipping); they use BNC connectors. At that price, I can get two Milwaukee SE220 Lab Grade Double Junction pH Probe, with free shipping. Is there a...

So i have set up my carx about 2 weeks ago, using a reef octo in conjunction with the carbon doser and my apex. Just curious anyone else who is using their apex as the ph controlle, what does your ph graph look like? mine was up and down alot but now had seemed to steady out. Set my effluent to...

was going through the many items I have stored and found a unused Milwaukee Smart Monitoring Controller still in box, I have no use for this and hoping someone in the R2R community can use, I will sell this to anyone who needs and pays for shipping, $25 US Dollars plus shipping, I will use USPS...