ph probe

I've recently started dosing kalkwasser into my system, so I'm paying more attention to pH than I previously did. I recalibrated the probe 3-4 days prior using 7 and 10 sachets. The probe itself is a little over 2 years old. The dip on sep 5th happened during my feed cycle, the only thing...

Looking for the new PM1 module and a PH probe. Let me know what you have.

Unopened, bought a week back. $60 shipped.

Neptune apex classic. Works great and works with apex fusion app. Comes with controller, energy bar, ph probe (Milwaukee, less than 1 month old), temp probe, display and aquabus cable. $200 shipped.

I’m selling a pm1 with a temp and ph probe (jun 2020) along with a breakout box. 60 shipped to the lower 48

Hello arduino ppl out there! Selling cuz I'm not so patient anymore. Tried to setup and I gave up. Works fine, reads fine. You just need to write a code and calibrate. This means, condition = used (once for.. 30min). One single package with: 1) Industrial grade PH meter 0-14ph. BNC connector...

Selling a Neptune APEX EL with lots of extras Includes Apex EL base unit Energy Bar EB 832 Aquabus cable 2x temp probe 1x Neptune pH probe 1x Milwaukee MA 911 lab grade double junction pH probe Apex Classic Display unit (black) 2x 24v accessories cables - I used these to power my return pump and...

I have a fairly new Neptune Apex El with two temp probes (one is brand new) and a ph probe. $325 shipped - sold

I wasn't aware the ph probe should be calibrated every 3 months. So it's been about a year and a half since I set up my tank and originally calibrated the probe. Yesterday I cleaned the prob and calibrated it 3 times and the readings im getting are not aligned at all with previous readings and...

I’m looking to find a accurate and reliable ph probe that is NOT from Neptune, BRS or GHL but I can’t seem to find much about them online, when I search for it all that pops up is what the best ph meters are, but I’m specifically asking about a ph probe with the BNC connector on it

Hi, I had posted this in the dev thread but I decided it was a better idea to make my own thread. I have a Raspberry pi 2 I am trying to use for reef pi with a pond. I already have a thermometer working but I am trying to get pH working too. I bought The atlas pH circuit and the atlas carrier...

So when installing new Pinpoint pH probe I didn't notice the electrode was broken and the KCl leaked into my 20g tank. I don't have access to a potassium test kit in a timely matter so I wanted to know if it would be harmful? So far all corals and 2 bta's appear fine. Any info is greatly...

I’ve been slowly working on this tank build. I purchased the Neptune Systems ApexEL a couple of years ago, but never installed it. I doubt if the PH probe is still viable, but I want to reach out to this group for your thoughts. Is the probe trash, or can it be salvaged Also, I’m still trying...

I need some help. I purchased an Anyleaf PH module. https://www.anyleaf.org/ph-module Wired it up and for some reason Reef pi does not see it. Any help would be awesome. I am sure it is something easy. I am not good at the code. I just need someone to point me in the right direction. thanks...

Brand new Neptune apex pm1 and ph probe $130.00 shipped

Can anyone help? I’ve gone through the manual and YouTube videos. It appears that my GHL is missing the “calibrate option” after selecting pH. Anyone know if there is a new method of calibrating the pH probes? What am I missing?

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...

Ph Temp Probe is used to detect PH and Temperature in a aquarium / fish tank, the code will also create a EasyIoT entry on the cloud. 3D plastic cover decrease the flow of water for more accurate reading. 3D DIY print cover: https://www.thingiverse.com/thing:4825350 code...

So I just got a pinpoint PH probe, I’ve calibrated it 3 time now. It reads 7 and 10 perfectly but I don’t trust it’s reading on my tank water. It says my tank is at 7.8 despite the fact I’m using a recirculating CO2 scrubber. When I use my Red Sea PH test it shows 8.2-8.4 pretty consistently...

Hi all, I've had my GHL Profilux P4 for about 2.5 years. As I understand it, pH sensors last 1-2 years. Is there a way/test to tell if the probe needs to replaced? (Rather than just replacing it outright just because it's 2 years old.) Thanks!

Brand new in box. Bulk Reef Supply DOUBLE JUNCTION LAB GRADE PH PROBE Asking $50 shipped.

Both probes used for about 3 months. Just took off the tank today and immediately stored wet and will ship wet as well. $70

I have an AquaMaxx cTech T-NANO hang-on calcium reactor. I just set it up on my 11-gallon aquarium because I recently got my first stony coral frags and want to start maintaining proper chemistry for these corals. I’m using a Versa peristaltic dosing pump from EcoTech Marine to dose the...

I have for sale are the probes and the Apex WiFi Brain only. Selling it as a bundle. Pulled from a system but don’t have the caps for probe storage. Probes will probably still be good but can’t guarantee so selling at a low price. $350 shipped for it all

I have an apex jr that I just pulled off my tank yesterday. It has been running my tank for a couple of years now flawlessly. It comes with the Apex Jr, display module, temp probe, pm1 module, double junction ph probe and wifi adapter for wireless connectivity to fusion. $250 Shipped to lower 48